Crashes/freezes like that are usually caused by a file that triggers a bug in either Opus or a third-party shell extension, or a general bug in a shell extension.
These two guides should help.
Note that we may take a bit longer than usual to look at crash dumps, due to the holidays. So you might want to try the second guide to see if you can trash down the problem file/component if you don't want to wait.
Alternatively, if Opus doesn't actually crash, but freezes for a long time, you can manually generate a process dump while it is in that state: