SUMMARY
Due to the changes introduced in the new version, some very long notifications (e.g. from Reddit) become too long and spawn a small scrollable area inside them. This area, however, creates some issues: if you are scrolling through notifications and the cursor gets on top of them, the area is ignored (so you don't scroll the contents, you keep on scrolling the notification list), but the content is scrolled by a distance that is the same as if the contents inside the scrollable area were displayed in their entirety. This all sounds rather complicated; I have a recording of the issue but, as the notification contains personal data, I would rather not upload it here where it is publicly accessible. If any developers wants to access it, I would be happy to provide it privately.

STEPS TO REPRODUCE
1. Get a very long notification
2. Scroll through notifications in the applet's pop-up

OBSERVED RESULT
Scrolling becomes jittery when you scroll over a notification with very long text.

EXPECTED RESULT
Scrolling is not jittery.

SOFTWARE/OS VERSIONS
Linux: KDE neon
KDE Plasma Version: 5.24.0
KDE Frameworks Version: 5.90.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION