As Mobian has gotten more popular, a more common question is if we support a particular phone. While it would be nice if manufacturers upstreamed their changes to make this task easy, the situation is (unfortunately) much more complicated than that.
We took some time to discuss what it takes to port Mobian (and Mobile Linux) to new devices:
https://blog.mobian.org/posts/2023/03/07/porting-to-new-devices/
Thanks @postmarketOS for the help making the post!