A very niche answer, confined to D&D.Things in RPGs that you used to like but don’t anymore
The Deck of Many Things.
Used to like it, both as DM and as player. Now, not so much.
The result is that the Deck has been removed from the RNG table (when I DM) and replaced with a note:
"Roll again, or hand select two very rare items"
I still use it, although my ref table is from Original (Men and Magic, page 12) three brown books.