a_blocky_taco

I still have this issue as well. The freezing is not every autosave anymore, but does occur. The chunk loading is very slow and travelling by boat is a miserable experience. Breaking blocks can be very laggy at times. Opening the inventory or interacting with a container (especially right after the world loads) can lead to a loading bar until it pops up a few seconds later.

I have also been dealing wth this since 1.18.30.

In general, the game just seems very slow at rendering block updates now, whether it's breaking a single block and having the game desync and reset it, or having to sit and wait for blocks to spawn in after you die or reach the limit of visible chunks when traveling by boat.

Also experiencing delayed chunk loading. ~60mb world.

No more freezing during loading screens, but now when I die there's maybe 1 minute before I can move. The game doesn't seem frozen, but I'm held in place as blocks slowly spawn in around me (this also happens when first loading the world). 

Also quite some delay with block breaking/placement at times, particularly in the nether. I've had stairs that were placed completely undo themselves and return to my inventory after the blocks I cleared to place them didn't really break.

~50MB world here, no freezes so far after several autosaves.

Can also confirm freezing during autosave on 1.18.31.

Tested on two different switches, one with a physical copy and the other digital.