Gizmos Only in Play Mode

When using gizmos as documented (MonoBehaviourGizmos, override DrawGizmos), they only draw (in the scene view) while in play mode. Tested in 2020.1.3f1, URP

Edit: Upon further inspection, this seems to only happen to me on my ancient macbook pro, but not Windows 10.

Hi

Hmm. So you are saying they show up correctly on your Windows 10 computer, but they only show up in the scene view when in play mode on your macbook pro?
Are you getting any error messages?