Thanks for that information, you will want to try again by doing the following.
First, be sure that you have removed all Epson software from the computer. Second, Acquire the software and drivers for your version of macOS 11 here.
After getting that software installed if you are still having an issue, it would be best to get Epson support to assist.
Lastly, you said the Epson printer is working with the Windows PC, I assume this printer is networked. Is it on a hardwire Ethernet connection or is it connected wirelessly?