I downgraded to 1.19.4 with same mods, but removed these:
Blossom
Create and its addons
Jade (replaced with WTHIT)
Slash and its addons
JoJo
Twilight Forest
Next Spring
Botania
Inventory pets
No issues yet, but I'm trying to add previously mentioned mods to this build so i can figure out if it's forge 1.20.1 problem or mod's