I recommend to not show weight and display name in perm list in /lp group <group> perm list

weight and displayname are just permissions that tell LuckPerms what weight and displayname the group has.
It wouldn't make sense, to just add something, to ignore those permissions.

These aren't special "meta" permissions like group.<group> and prefix.<data> - by that I mean, they don't have any special handling internally - they're just permissions.

So yeah, I agree with Andre, I think it's best that they remain included.