This is a bug that long exists in gtk+wayland. Upstream description [1]:
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Have some Application A in Workspace A, Epiphany in Workspace B. Click a link in an app in workspace A.
Expected: Epiphany loads the page and grabs window focus; gnome-shell switches to workspace B.
Actual: Epiphany loads the page, but you have no idea, because it's happening on a different workspace. Really frustrating.
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The simplest fix is in the patch attached, but upstream rejected it on the ground that it does not prevent focus stealing [2]. The current decision is not to allow focusing at all (without a timestamp).

This, however, is a usability issue even worse than focus stealing. And for now there's no "correct" way in Wayland to fix this. I wonder if it would be more appropriate to patch it in the distro for the sake of user experience.

The effects of this patch are:
- Correct focusing inside the same workspace
- A "ready" notification if the window is on another workspace

Additional info:
* package version: 3.22.30-1

Thank you!

[1] https://gitlab.gnome.org/GNOME/gtk/issues/624
[2] https://bugzilla.gnome.org/show_bug.cgi?id=786455