What filesystem is currently best for a single nvme drive with regard to performance read/write as well as stability/no file loss? ext4 seems very old, btrfs is used by RHEL, ZFS seems to be quite good... what do people tend to use nowadays? What is an arch users go-to filesystem?

I have been out of the loop for a while with the development of Linux/GNU based OSes on phones. However, with seeing how companies (like reddit) can change the rules as they wish, I want to see if completely switching to Linux is possible.

Long story short… what are the current phone providers that have Linux as an OS, or what is the best way to run Linux on an off-the-shelf phone?

As a side-question, is Nextcloud still the next best option for a complete service alternative to Google/iCloud?

Thank you!

Could we get a new icon for the community that is maybe a square so that it is not stretched? Thanks mod :)

As an example: https://cdn4.iconfinder.com/data/icons/logos-and-brands/512/240_Opensource_Open_Source_logo-512.png