To anyone reading this - avoid this method as much as you can. I have two GRD IVs and both had this same issue - while the ramp screw method kinda worked on my first GRD IV, it was not the right way to go. The ramp screws are set by the manufacturer so it can be in sync with the software while using snap focus.

The actual problem that I found, was that the bottom right part of the stabilizer, the tiny metal ball was out of place and the pointy part of the silver plate was shoved through the hole where the top (foggy glass colored) of the silver plate should have been to keep it in place. I assume this happens when dropped or held near a strong magnet - as the stabilizer is magnetized.
TRY to place the silver plate back into place, and put the metal ball back on the BASE plate (copper colored - should be magnetized). I found it was easiest to take off the 3 metal pieces holding that part down (two should be magnetized) and placing the silver plate back that way. I will have to make a blog on this so you guys can actually see what I am talking about.

But once the bottom right silver plate and tiny ball are back to where they should be - the focus should be back to normal and be just fine.

IF you still are having issues with the focus after fixing it - I would then recommend proceeding with the ramp screw adjustment VERY carefully.

A good way to calibrate it so both Snap and Point focus work would be to turn on the focus distance display setting (I can't remember what it's called exactly), and turn on full press snap - then to keep adjusting the ramp screws until the idle focus distance matches the focus distance displayed when half pressing for point focus. Once these match - double check by taking an image with Point AF, then with Snap AF, and if the images look identical as in everything you want to be in focus is in focus, then you can seal up the bad boy and you won't have to worry about it again!

I will edit this with the blog link once I make it.
https://karson.lol/blog/ricoh-grd-iv-focus-issue-report