This is the best option. Love the app. But always remember to keep a backup of your tokens.
There is also ente.io authenticator app. It is available on fdroid. I think it supoorts cloud synchronisation as well.
Oh, also Firefox is the only mainstream browser on Android that supports installing extensions.
I have been using Firefox since the release of Firefox 57 aka Firefox Quantum in 2017. I love the browser and most of sites run well in firefox. But there have been a few cases where I had to use a chromium based browser.
Firefox + Ublock origin is a great and awesome combo.
I also use Firefox on android. It is okay, but I sometimes feel it is slow at loading some sites. But it is not a big deal.
You are a brave user, aren’t you?
Try magic earth. It is good and privacy friendly.
Instead of using Gmaps. You can try
Is this thing even real?
I would suggest using an aux cable instead.