SUMMARY
In Gwenview there is option 'Open in containing folder'. Nice, only the problem is that this option works well only when we don't have any additional Activities with opened Dolphin. In my case after I used option 'Open in containing folder' then was opened folder in Dolphn which was placed (Dolphin) on different activity than Gwenview (used to viewing pictures), despite on the same activity I had working Dolphin. From some unknown reason has been chosen different instance of dolphin than placed in different activity.


STEPS TO REPRODUCE
1.  Add one or two additional activitites (I have 3 : A, B, C)
2. Open Dolphin on both (A and B)
3. Open Gwenview on folder with pctires on A
4. Choose option: 'Open in containing folder' for opened picture

OBSERVED RESULT
Plasma switches to activity B and here opens folder in Dolphin

EXPECTED RESULT
Plasma should not switch current activity, only open folder in Dolphin working on current activity

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: YES
(available in About System)
KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.85
Qt Version: 5.15.2 with kde patches

ADDITIONAL INFORMATION