Hard drive mount/permission problems



hello everyone I just installed Endevour OS on my main machine but it had win 11 ( i know)
but have had issues mounting and then allowing my main account too use it
so my problem is I have 2 or 3 drives ,

  1. nfts my 10tb media drive is full mounted but will need to change who can edit and read/write from root to my user account

  2. i have an old 2tb SSD that has been giving me trouble as well it was mounted well had exfat but thought in my wisdom to format it to btfs and the trouble started rookie mistake , and wont unmounted or mount etc

  3. have an m.2 2TB that is mounted sort off but does not mount right
    would prefer a walk though on a call and me screen sharing.
    been looking at mounting videos or forums but either didn’t work or did it wrong like a noob