Well, perhaps I should add that I am using an iPad Pro 12.9 2nd Generation 512GB (300GB free) using iPadOS v16.2 (there isn’t a separate section, as far as I can see for iPadOS so I used the iOS tag. I’m typing this via Brave on my Mac, by the way because there is a lot to type!
I should also add that as far as commenting on YouTube videos goes, I am invariably watching the video on another device (Android TV Box) and just using the iPad to comment either as I am watching (rarely) or after watching but I don’t have autoplay selected on the iPad nor the Android device.
That said, the text entry aspect of this is merely an infuriating outcome, it isn’t the problem itself - the tabs refreshing randomly is the actual problem. Also, when it happens, it isn’t just one or two tabs which refresh, it is all tabs (maybe apart from the last opened one). I think that focussing on the text entry aspect or YouTube is heading down a dead end - it happens with all websites regardless of whether text has been entered or not. I have tried other browsers, Safari, Firefox and Opera and none seem to have the problem. I just did a quick search on here and there were other iOS users with this problem and it seems to be, or have been, an issue with the Android version too. I also saw one thread from a Windows user with a similar problem.
I have tried disabling and enabling Background App Refresh but that made no difference but here are the current settings for Brave. Most have never been touched.
First within System Settings:
Location > Never
Photos > All Photos
Local Network > Disabled
Camera > Enabled
Notifications > Disabled
Background App Refresh > Enabled
Default Browser App > Brave
Allow Cross-Website Tracking > Enabled
Settings in Brave:
Brave Shields & Privacy
Block Cross-Site Trackers > Enabled
(I don’t know why this contradicts the System Settings)
Upgrade Connections to HTTPS > Enabled
Block Phishing and Malware > Enabled
Auto-Redirect AMP Pages > Enabled
Block Scripts > Disabled
Block all Cookies > Disabled
Block Fingerprinting > Enabled
Block Cookie Consent Notices > Disabled
Content Filtering > the only enabled filter is Fanboy’s Mobile Notification List
Skipping the Clear Private Data and Manage Website Data as they seem to be actions which the user performs as required.
Private Browsing Only > Disabled
Block Popups > Enabled
Block ‘Switch to App’ Notices > Enabled (doesn’t work on e-mail links)
Allow universal links to open in external apps > Enabled
Block Dangerous Sites > Enabled
Allow Privacy-Preserving Product Analytics (P3A) Enabled
Brave Rewards > Disabled
Brave News > Disabled
Brave Firewall + VPN > Disabled
Search Engines
Standard Tab > Brave Search
Private Tab > DuckDuckGo
Quick Search Engines > default plus some I added: eBay (UK), Amazon (UK), Rumble
Sync > Disabled
Always Request Desktop Site > Enabled (I don’t want a mobile site on a 12.9" screen!)
Enable Pull-to-refresh > Disabled (I disabled this trying to fix the problem)
Enable Background Audio > Disabled
Website Redirects > both off
Appearance > Automatic
New Tab Page
Background Images> Disabled
Privacy Hub > Enabled
Favourites > Enabled
Page Zoom > 100%
Show Bookmarks Shortcut > Enabled
Close Tabs > Manually
Browser Lock > Disabled
Logins & Passwords > None
Version 1.46.2 (23.1.10.20)