Bartender 4.1.12 has been released as a test build and it adds support for the notch on the 2021 MacBook Pro. “If you are using a MacBook Pro Notch, I recommend you use the Bartender Bar, as this removes the limit of the notch on the number of menu bar items you can have, you could also use Small menu bar item spacing to gain more room. You can update to the latest Test Build by clicking the button below, or from Bartender Prefercnes > Advanced, Check to Update your Test Builds then click the Check for Updates button.”
Check It Out: Update for Menu Bar Organizer ‘Bartender’ Supports MacBook Pro Notch