Oh yes.
The 4E monk was quite simple and worked perfectly, the fighter had many things going of for them.
Monk regained 1 Ki per turn at level 20.
You know the 3 new ''critical hit'' feats from Tasha's? Well it was a Warrior's (one of the later playtest fighter's archetype). They also had a knight archetype which was pretty much a 4e defender in 5e, no like the cavalier from XGtE which requires 17 levels to be almost a real defender.
The archetype with the superiority dice could use their action to regain 1 die, and a higher level, if they spend a whole turn without any die, they recovered 2 dice at the start of the following turn.
The druid shapeshift used templates instead of the monster's statblock.
The ranger's archetypes were based on their favored enemy.
Paladin had a archetype-based summon mount built-in feature.
Evoker wizard could deal half damage even on successful cantrip save AND missed cantrip spell attack, not like their crappy feature that is applicable to, like, 2 cantrips in the whole book! And they could ignore resistance at higher level.
Illusionist could cast Invisibility as a reaction when attacked.
Enchanter could make their charm effect permanent and ignore immunity to charm!
etc, etc, etc