By which I mean an auto-fill service

Ah, I was using Firefox Lockwise, which was discontinued, but I see that Firefox itself can act as a password manager now?

My only gripe is having to insert my password every 15min (afaik it's either that or having all your accessible by anyone using your computer). That and the fact that they discontinued the password manager they had on Android. This is what made me move to bitwarden.

I bought a second hand (non-5G) specifically because I wanted a smaller phone.

The free version of Proton VPN blocks torrents, fyi.

Is that the one with the coca cola bottle falling from the sky?

I'm with you on the YouTube thing, but you seriously should consider investing some time on getting those ads blocked.