Computer restarted because of a problem every time I startup computer

Uninstall both BitDefender and CleanMyMac by following the developers' instructions. Anti-virus apps, cleaning/optimizer apps, and third party security software are not needed on a Mac plus they usually cause more problems than they solve because they interfere with the normal operation of macOS at a very low level. macOS already has great built-in security especially when combined with the user practicing safe computing habits such as those outlined in the following article:

Effective defenses against malware and other threats - Apple Community

Using such programs can actually make the system less secure since they can introduce a host of new potential vulnerabilities and some of those types of apps are selling your personal information. CMM is notorious on this forum for causing all sorts of problems and many times the CMM uninstaller does not completely remove CMM.

Also, try deleting the file listed in the Clean Up section of the EtreCheck report:

/Library/LaunchDaemons/org.filezilla-project.filezilla-server.service.plist

If you still have problems after uninstalling those apps, then run EtreCheck again & post the new report.

I don't see anything else software wise that concerns me, but I'm also not a macOS software expert so I welcome other contributors to chime in here in case I overlooked something.

Seems to be related to the GPU, but hard to say if it is hardware or software. I'm leaning towards a hardware issue only due to the first screenshot showing the failure was due to "setPowerState", but this is not necessarily definitive. The other two screenshots show a different failure that is still related to the GPU. We may know more once you post an EtreCheck report as suggested by @Luis.

You can also try running the Apple Diagnostics to see if any hardware issues are detected. Unfortunately only a failing diagnostic result is useful, but that doesn't happen very often.

In order for us to know more, please run Etrecheck and post its full report here. Use the "additional text" button and paste the report into the text box.

Kernel panics can either be caused by a hardware problem, or a bad system extension.

Please follow HWTech's solid advice, and let us know.