16' Macbook pro 2019 crashing constantly and randomly, Cant find the issue why.

So I had Sonoma installed on my 2019 MacBook Pro (i9 w 64gig and 1tb drive, 8 gig gpu) and it started restarting for no reason. It would be sitting idle and I would come back in with it saying it had to restart because there was a problem. it would get hung in a reboot loop for a while and then for no reason start up fine. I would go back to using it with no problem sometimes, and then sometimes it would reboot because I opened a web browser or was watching video that just started... random stuff. I ran etrecheck and it said that a system extension might be the issue and I removed that kext it recommend. Nothing changed. So I thought I should do a clean install of Sonoma and that when the major issues stared. I backed up and deleted the internal drive in the recovery (command r) section, but it wouldn't let me install Sonoma. it did let me install Catalina but from the software update wouldn't let me update to Sonoma. Sometimes it was because it couldn't download and others are because the download was broken and couldn't start. Ive cleared the NVRam and reset the SMC, Ive booted into safe mode and ran First aid. I even ran hardware diagnosis and it came back as everything was fine and working properly. But I'm still getting random restarts and app crashes on the freshly installed CatalinaOS with just the apps that recovery puts on, I haven't restored from my time machine backup because of the issues. What is the issue, is there something else I could try? It started all of the sudden Friday and hasn't stopped yet no matter what I've tried. any help would be appreciated. oh I have not done a revive from dfu because I don't have another Mac to plug this on into. Again any help would be appreciated.