I saw a similar question somewhere and it was to do with functionality on nostr relays.
I think only certain relays support features like fuzzy searching, so to provide a minimum feature set, certain relays are kind of mandatory.
I do wish this was more obvious though, like the inability to remove those relays with more information buttons and a notification when new relays are added for you.
#Amethyst with #Amber on android is great for taking control of your client. But you have to be patient and read everything it wants to sign before approving.