Comment 1 for bug 2015128

Would you be able to provide a screenshot of what your screenshot dialog looks like? :)

There are actually two possible ways that Pinta can take a screenshot now. One (which is tried first) is to use the XDG screenshot portal if available, since this is the only way that works with Wayland, sandboxes like flatpak / snap etc. This uses your system's standard screenshot tool and then makes the result available to Pinta

If the portal doesn't work, the old method is used where Pinta takes a full screen capture itself.

It sounds like the screenshot portal might be what you're using, if there is a preview in the screenshot dialog?