There’s no need to jump into conclusions when it’s too early to tell.
If later, it so happens it gets removed, and you don’t want use out of tree stuff, which is still possible through several means, including building your own linux (your own kernel), then you can back all contents of your partitions up, create new partitions with the FS of your preference (ext4, btrfs, whatever), and finally copying over the contents of that last backup. No need to stress out this early, :)
There’s no need to jump into conclusions when it’s too early to tell.
If later, it so happens it gets removed, and you don’t want use out of tree stuff, which is still possible through several means, including building your own linux (your own kernel), then you can back all contents of your partitions up, create new partitions with the FS of your preference (ext4, btrfs, whatever), and finally copying over the contents of that last backup. No need to stress out this early, :)