This right here is how i knew about my nothing phone to be relockable, good stuff

Osmand+

Maybe check Alovoa

Whats wrong with bluesky?

Censorship as in, not being able to watch some kind of content? Not being able to post some kind of content?

I recognize a rexoium when i see one

They say on the lineage devices page:

• Devices not listed are not supported.

and

• Nearly identical is not sufficient

Looking through the devices we see A7 Wifi and A7 LTE, noone of them have SM-T225 on their supported models list, so the A7 lite wouldn't be supported It's not even on the discontinued devices list What i would do is look on XDA for custom roms