System information is as follows:

System: iMac (Retina 5K, 27-inch, 2020)
OS: macOS Catalina 10.15.7
Processor: 3.6GHz 10-Core Intel Core I9
Memory: 64GB 2667 MHz DDR4
Graphics: AMD Radeon Pro 5500XT 8 GB

Adobe Illustrator Version: 25.1 (latest update)

Since upgrading my iMac a few months ago, Illustrator is randomly crashing my computer. After using a safe mode start, I believe I have isolated the problem to be associated with my extra monitor. After disconnecting my extra monitor, the crashes have stopped. This is very inconvenient because I can use my extra monitor for all of my other software (Including the rest of the Adobe Suite).

FYI, All other suggested fixes including turning off GPU performance, resetting preferences and disabling fonts (suggestions from support), did not solve the problem.

If disconnecting the extra monitor continues to work, then this may be a sound temporary fix for others having a similar problem with a similar system configuration.

Please fix this problem, though. I need to have my extra monitor working.