Cursor randomly jumps when typing in Messages

Cursor jumps randomly when typing in MAC Apps (Messages, TextEdit, etc)

I have tried resetting pram, running countless diagnostics, CleanMyMac, Utility Disk, and more with no success in figuring out a solution to my cursor randomly jumping to different lines when typing in Messages or other Mac-based apps. I use my 16" 2019 MacBook Pro keyboard when I travel, but use Bluetooth keyboard at home in my studio. It happens the same for both. I've updated to Sequoia and the issue followed me. I bought a new MacBook Pro M4 Pro last week and migrated over. The issue followed me to the new computer. It's obviously not a HARDWARE issue. It's not a keyboard or trackpad issue. I have seen online that certain applications could interfere. I have not found it yet. I can't force it to happen (usually when I'm on with AppleCare...it works just fine). It's completely random. It's not happening right now. I have 1,500 plugins installed for my music production and would rather not start my computer over from scratch. I've done that once before and it took a couple weeks of installations and reactivations. PLEASE! Does ANYONE have an idea? I probably haven't tried EVERYTHING...but I can't think of what I haven't at this point. It SEEMS to only happen when I'm using mac-based apps (email, messages, textedit, etc).

UPDATE:

I have uninstalled CleanMyMac. It's only been a day...so I'm waiting to see what happens today. I also downloaded EtreCheckPro from a suggestion in another thread. I have a readout, but I have no idea what I'm looking at. I still can't find anything online to help me with this issue. I've booted in SAFE MODE...and it SEEMS like I don't have the issue...but I can't work all day in SAFE MODE. So how do I determine what software is causing the issue? I've turned off STARTUP ITEMS one by one with no results.