#1 Sounds like a can of worms:
- Expansion chars can go up to level 100, whereas the others stop at 85
 - With FG the number of shrines increases when you play higher difficulties, whereas they become rarer without FG
 - Features like Movement augments, x% Retalliation Damage added to Attack and Monster Totems exist in FGs only
 
It’s not so bad - see:
Or are you un- and reinstalling the DLCs each time?