Utilizing a 2013 iMac as a display for an M2 Mac Mini
Utilizing a 2013 iMac as a display for an M2 Mac Mini
For High Sierra it's acceptable. The connecting machine must have Catalina or an older version with macOS Catalina installed. They mention they're using Big Sur and warn others about issues on M1 devices after updating to Monterey versions: "I used TDM with my imac mid 2010 (High Sierra) & M1 MBP (Monterey 12.0.1), but it stopped working. Don't update your operating system on M1 because mine isn't supporting TDM since I upgraded to Monterey 12.2.1." They note potential changes with newer M2 models and OS releases, suggesting it might not be reliable unless it's just a testing idea.
Big Sur came after Catalina, which means it’s an older option that hasn’t been updated much. In some users’ setups it still works, but it’s not reliable since it might stop functioning at any time. This feature is quite outdated and could fail unexpectedly, so I wouldn’t rely on it either.