I think the biggest issue here is that metroidvania as a genre is just far too tedious and not all that fun to play, unless you grew up playing Metroid or Castlevania. Hollow Knight has so many great things going for it, but after several hours of predictable power gaining and backtracking through the same areas to open new pathways just to do the same thing again I couldn't take it anymore.

being able to go back to each area to explore it to 100% with the whole power set feels really great.

Nothing about this sounds fun to me. Perhaps when I was 8 years old, but not now.

I have both Ori games and spent even less time with them. They are prettier than Hollow Knight but even more dull unfortunately.