MadEngineer: Removal of the clock from Windows 11. You used to be able to click the date/time display in the task bar to get an analog clock but now you only get notifications + a calendar.
Could I recommend 8GadgetPack, which gives you all that and more? I've currently got a clock/calendar, CPU load and temps, memory use, top processes, network traffic, and a bunch of other stuff all as a sidebar next to my work.