Need to backup or export my data so I can reinstall my OS and keep all my data

I am running Linux Mint and am having issues with my OS that I haven’t been able to resolve so I’m going to format my hard drive and reinstall the OS. I have many years worth of data built up in Brave (autofill, bookmarks, extensions, rewards) that I need to transfer over after reinstalling my OS. My current OS is Linux Mint 19.3 and I’m going to install the newest version when I format. I don’t see a way to export out my data, except for the bookmarks, so that it can be imported back in after reinstalling the browser.
I see there is a Sync feature but from the very limited data I can find about how this feature works, it appears that it does specifically that 1 thing, it syncs the data between multiple PCs. the information I’m looking for about sync is if I can backup the data with sync and then restore it to the same PC after reinstalling the OS. I can’t find a clear answer on that, it seems like it can only be used on PCs that are both running at the same time. I really wish I could find a clearer answer to that, and somebody please direct me to it if that answer exists because I’ve been looking for about 4 days and can’t find that answer anywhere.
is there any way I can just backup the entire profile folder and then restore it on the same PC after formatting the drive and reinstalling Linux?

Not sure why you say limited data on how this works? There’s lots of information on it. Three official links are below:

Then you have my guide(s) on it as well:

Not that it needs to be running at the same time, but the code changes daily. So if you don’t get it done in the same day, you’ll have an expired code. So it’s generally best to only do if you have another active device, such as a phone, that’s connected. It’s a “better safe than sorry” type of thing.

I cover that in the link about doing a backup. Short answer is yes, but no. Passwords generally don’t survive through a change like that, especially is the OS keyring changes, which is likely after you reinstall OS. This means while you’d have passwords in the folder, they’d be encrypted and unable to be accessed. So may as well say you don’t have them. So definitely would want to export passwords to an external drive to be safe.

vBAT has been dead since November, so you wouldn’t have those anymore. What this means is the only Rewards BAT we have would be what’s in our accounts, such as Uphold. If it’s been paid there, it still exists. It’s possible that anything you’ve earned on your existing device will pay out through the back end if you had any estimated earnings. But I don’t want to guarantee that, so go with the idea that you might lose out on however many days of earnings you have when you reinstall the OS.

Other thing I’m going to put out there is that if you’re using Gemini and switch, you won’t be able to connect to Gemini again. There’s a small chance that moving the folder over might maintain it if you replace everything before launching Brave on your reinstalled OS, but it’s a roll of the dice.

NOTE

If you do try doing folder backup, try to make sure both are the same version of Brave if possible. Also you should also make sure that you replace the \brave-browser folder before you launch Brave, that way it doesn’t create any profiles or anything ahead of you. You’re going to try to plug in your prior details first. So install Brave → replace folder → launch Brave.

sorry, poor choice of words in my post. what I meant by that was that I wasn’t able to find any clear info about how to use Sync to perform a backup to be restored on the same PC after wiping the hard drive and reinstalling the OS, as I said earlier everything I could find seemed to all speak about using it on 2 separate PCs that are both running at the same time. None of the documentation I could find ever gives a clear answer if it can be used that way or not.
might be nice for them to update the documentation to speak about backing up user data to restore it back to the same PC after a hard drive wipe or OS reinstall. seems like I can’t be the 1st person to run into a scenario like this since the Sync feature was implemented. Not everybody has access to multiple devices, and as I am 1 of them I was looking for a way to save my data before wiping the drive and losing it all. every other browser has a feature that will work on a single PC and it’s pretty easy to determine this from the documentation.

thanks for the info you have added here, I will get started on all this soon.

All good. I pointed it out and asked just in case there might have been something different you needed. Then beyond that just wanted to make sure to share some resources that may help, especially if you had been unable to find that information yourself.

Hopefully everything presented is helpful. If you need clarification or extra information, please let me know.

Technically you can but it’s not the intent. And just to reiterate, the sync code changes daily. So is something people need to be mindful of if using it with just one device. Always better/safer to have multiple devices on the sync chain.