Assuming it can de done, should I upgrade to Windows 11?

I've been running 11 on a 3770k for 4 years with no problems. I'm not sure how long that will last though, and we will be forced to switch to linux at some point in the future. As of right now and the foreseeable future, switching to 11 will get you longer support than staying on 10. You want to use Rufus to bypass the TPM 2.0 requirement and create a bootable USB. 

1. Boot into bios and make sure you have secure boot enabled. You can boot to bios by spamming the f12 key after you restart the computer, while it's on the dell logo or whatever. That will get you a boot menu and you can select bios from the menu. 

2. Go https://www.microsoft.com/en-us/software-download/windows11 and download your windows 11 iso. 

3. Download Rufus and hit the select button and find your downloaded windows 11 iso. Partition scheme should be GPT and target system should be UEFI. Make sure your USB is selected under device at the top and hit next. Then you'll get a popup that has options to bypass TPM and install without a microsoft account. 

4. Install like you normally would and if you want to install without a MS account unplug your internet.