If you don't want to wait for Windows 11 to get a battery percentage indicator, you can enable your own right now, and it ...

so that they won’t block the icon’s progress bar, and added the ability to show the battery’s charge percentage next to the icon in the system tray. It can be enabled by going to Settings ...

It will be easier to see if your laptop’s battery is full and charging, or about to die and needs to be plugged in.