Error - panic

Start with this article.If your Mac restarted because of a problem - Apple Support Then check with this.Diagnose problems with your Mac - Apple Support and thisIf your Mac sleeps or wakes unexpectedly - Apple Support

"IGPU" means Integrated GPU, so the issue is related to the graphics chip or possibly some third party software you have installed. It helps to post the entire Kernel Panic log so that we can see the backtrace as well. It is also best to post several Kernel Panic logs so that we can see if there is a pattern to the crashes. The Kernel Panic logs are located in "/Library/Logs/DiagnosticReports" and the file name begins with "kernel" and ends in ".panic". Post the logs here using the "Additional Text" icon which looks like a piece of paper.

To look for possible software issues run EtreCheck and post the report here using the "Additional Text" icon which looks like a piece of paper. If you give EtreCheck "Full Disk Access", then the report will include more information including a summary of the logs.

You can also try running the Apple Diagnostics to see if any hardware issues are detected. A passing diagnostic does not mean the hardware is good.

I don't see any third party drivers in the backtrace so you most likely have a hardware issue. Make sure macOS is completely up to date and disconnect all external devices. If this happens with a clean install (erased drive, reinstall macOS without migrating/restoring from backup, then it is most likely a hardware issue). You could try reinstalling an older version of macOS (Big Sur, possibly Catalina) to see if you still have the problem in case it is some bug with Monterey (I have not seen or heard of anyone having this IGPU panic).

How to create a bootable installer for macOS - Apple Support

That error is very similar to the other one.

Please POST your etrecheck report. The report that is shared is pre-laundered of all personally-identifiable information. Instructions are included inside Etrecheck, or you can use this guide:

How to use the Add Text Feature When Post… - Apple Community