It's now called apple tv, is it possible to change the name of the community?

I don't think so, but you may get a better answer asking in the mod community.

However, there's no subscribers and no real post in 10 months, I think you're fine creating a new community with the correct name.

The display name can be changed, but the actual name that creates the link cannot be changed without creating a new community.

The display name, Apple TV+ Community, can be changed to, Apple TV Community, but !tvplus@lemmy.world cannot change.