I haven’t been paying to much attention to the news but I’ve heard that other, non-NATO, countries have threatened some of the countries that are just simply giving aid to Ukraine. So, I’d assume that those other countries would get involved in some way and just make things worse for everyone.
I’ve been using Fennec F-Droid, which is based on Firefox. I mostly use it because I want a non-chromium based browser and Firefox and it’s derivatives have browser extensions on android. I chose Fennec F-Droid because, while I could be wrong, it seems to be slightly smaller and run slightly faster than Firefox.