Hi,
I updated to the latest VLC Player version 3.0.21 and I am using a 21:10 ultrawide monitor.
When I try to crop a video (right click > video > cropping > for example 1:2.39), the setting is ignored and the video continues to play just as it is. If I change the video renderer to Direct3D9, cropping works as intended, just as in the previous version 3.0.20 with D3D11. I also cleared settings and cache while un/installing the old/new version. The problem with D3D9 is, that HDR does not work.
Currently I switched to OpenGL for Windows, which seems to work both with HDR and also cropping.