Hi. I think that in high rake games should be better to open bigger because oppenent should fold more preflop and u should pay less rake for the rule ''no flop no drop'' used in almost every poker room.
If you look at this sauce video he open pot and he explain why:
https://www.youtube.com/watch?v=kfLMUmxgakk&t=489s
BTW i dont use pot but i open 3bb on every position