https://www.youtube.com/watch?v=P349BdHUxlc&t=0s
There's too much that's simply memorisation over skills, deep lines leading you down well traversed paths.
Creativity and ingenuity suffer.
The only real option* if you want interesting games is to make intentionally bad moves so that theory falls apart, and that's only an option against weaker players.
You can play with the more restricted time controls - but that only mixes things up by forcing mistakes, not by introducing well considered novel moves.
* There's always Fischer random.
https://thechessworld.com/articles/openings/5-chess-openings...
There's probably a limit as to how bad a move you want to make: https://en.wikipedia.org/wiki/Barnes_Opening
You're probably better of going with dubious openings, rather than actively bad: https://lichess.org/study/FzX9K6ff.