There are pretty okay trackers asking for no proofs on open signups. It's mostly a matter of patience. You can even just sign up for everything and see what's a good fit, but be sure to use unique passwords on everything to be safe.
If FNP or LST open up again I would suggest signing up, they are shaping up to be good entry level trackers. Also TL usually opens a couple times a year. It's a massive site but kind of a mess when it comes to curation. Don't use iPT unless you have no other option.
People will tell you to join book/music trackers to rank up, but unless you like grinding I'm not sure this is the best route.
I checked and this is not present on my device. It is an unlocked Google Pixel 6a purchased via contract with the mobile provider. That said, I factory reset the device when I got it, so it may have been removed at that time.