OK. I did the upgrade. It changed the old screen saver, login screen, forgot my email account password in Mail app, and unable to upgrade Office for Mac installation due to “Download error…” in MS AutoUpdate app ( Unable to upgrade Office for Mac installation due to “Download error…” in MS AutoUpdate app for its thread). I wonder what else broke. Ugh. Yep, its fan was louder than usual, but that’s normal. IIRC, older macOS version (e.g., Ventura) warned the user about it. Did I ...
