@FarraigePlaisteach It only works if you put accounts that you already follow into this list. (Doing it differently is simply not possible.)
@FarraigePlaisteach You can create a list for them (and possibly other other very frequent posters) and configure the list to hide the members in the home timeline. Then you see their posts only when you look into this list.
@BastilleBSD So far, I have had no problems with Librewolf (librewolf.net).