Privacy browser and chromium (ie Google) is an oxymoron.
https://security.stackexchange.com/questions/144289/privacy-with-chromium

If you choose chromium, you are trusting google with your data. Brave remains nothing but a UI for API calls to google services.

More likely shows the lengths the corrupt PM of Israel and the Dictator of Russia shall go to to distract from their issues.

To test web sites under.

Given enough time anything can be decrypted, so, yes. The actual question is if they would have any interest in doing so given the large investment of time and resources required when they can simply hit you with a wrench until you give them the password to your device or in more enlightened Countries, just buy the data directly form Meta. You don’t control the server so there is no assurance of any encryption being secure beyond your chat not being interesting enough to justify the attention.

None of those three are true.
Some web sites are optimized for chrome.
Not remotely accurate, https://bugs.chromium.org/p/chromium/issues/list
Not to any relevant degree. 515 VS 528 is at best a slight difference that in all likely hood is from Googlie using their position to strong arm things that benefit only them into the standards and very likely undetectable by the end user. https://html5test.com/

I have no problem using firefox with my self signed cert. Just add the cert.

subscription means don’t pay lose access. So no, not a subscription.

cryptocurrency is not remotely anonymous

So you would agree you’ve not a leg to stand on and are flailing?

I’d suggest TripleA but you don’t make friends in TripleA, only bitter enemies that will never betray your again!

Other than the terrible security record? That they are proprietary.

https://bitwarden.com/

which sends data back to MS, but sure.