On Linux, Brave wouldn't open until User Profile was wiped; is there ANY way to get that data back without a backup

Browser Support Sync
1

I lost a lot of tabs on one computer when I stopped syncing; another computer (Linux) still had them. Then the computer wouldn’t start, and I didn’t think to backup. I followed some stupid terminal instructions and wiped the user profile.

Is there ANY way to recover my lost user profile, with all my tabs?? I still have passwords on another computer, but losing the tabs would be very upsetting for me.

Thanks.

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One more note – all this happens because Brave won’t start at startup. I kept having to delete SingletonLock at startup, and eventually it stopped showing up – and Brave wouldn’t open.

Why is this happening?