Blasphemous 2

Make use of your marker system on the map screen. Every time you find one of the floating cherub cages and set them free, make sure to put a mark on your map where you found it. This will make it easier later to which of the 33 you have already found. It will take all power ups to get to all of the cherubs, so this will be a later game clean-up achievement.

I used the following page to count how many cherubs were in each map section and compare to the markers I had added to my map to see which ones I already had and what was missing.

https://www.thegamer.com/blasphemous-2-all-proximos-brother-...

For me, I was missing 2 cherubs that were hiding behind tree foliage in Choir of Thorns. I was also missing one that was out of sight on the right hand side, down the main shaft at the bottom of the Elevated Temples. The achievement should pop as soon as you set free #33.