For screen capture with Win11, I've been using the ancient IrfanView graphic file viewer. I've been using that free software since the late '90s. To do a screen capture, just fire up IrfanView and press the 'C' key. You get a dialog asking what kind of capture you want to do. The choices are:
- Full desktop area - all monitors
- Desktop area - current monitor
- Foreground window
- Foreground window - client area
- Custom rectangle/region capture
- Object selected with the mouse
- Fixed screen rectangle (allows entering screen coordinates)
After choosing the format and clicking Start on the dialog, IrfanView minimizes itself. You press a hotkey to perform the capture itself. The hotkey defaults to Ctrl+F11, which I always leave alone, but you can define it to be anything you want
It's an old-style Win32/Win64 program, so its use should be familiar. You can save the captures to a whole lot of different graphics formats. I use it extensively to do screen grabs to produce online software documentation. It works fine under Win11. Great graphics viewer too, with slideshow capability. I also use it to do artwork maintenance for my music collection, like cropping and resizing.