Black artifacts after suspend on KDE neon (plasma). Freezing while switching between virtual desktop...

Hello. I’m using 415.27 with KDE neon. Here are some things I’m noticing.

After suspend I can see some black artifacts. Usually it’s in the text of the desktop icons. Also sometimes it’s in the wallpaper of the lock-screen.

Also while switching through virtual desktops it sometimes freezes for about 5 seconds.