I’m playing PC non-Steam Oblivion and am not really familiar with the modding community.
I assume for most mods, I just put the mod file in the Data folder and choose it from data files on the launcher screen. Anything too much more complicated than this, and I probably won’t want it.
Anyway, what are the essential mods for Oblivion? I’m especially interested in gameplay ones, but I’m open to literally any mods that you think are worth it.