A notable mention is https://ubports.com/en/ which is different from postmarketos in a sense that ubports uses old kernels with heavy patches. That means: good support for things, but difficult future.
PostmarketOS uses the newest kernels and tries to integrate their patches into mainline kernel, so that the reliability is maintained with all kernel developers.
Be nice if Linux phones could be like how Samsung phones used to be before they started removing features to directly compete with Apple smartwatch markets. I don’t understand how competition=downgrades because they wanna stretch features out to sell more products than how it used to be when both companies were all about being the One Phone That Does it All. I can afford the one gadget, always have and always will, but especially now when everything is so expensive I can only ever afford the Samsung A-Series not their main marketed S line.
But, do you ever need anything more than a A series phone? Or just want?