Comment 147 for bug 1690719

It seems I have the same issue. But it also affects keyboard key press repeating during the micro friezes. The behavior is slightly different in wayland and xorg session. wayland during such friezes causing multiplied key preses like thisssss, but under xorg just hold for about a second with no repeating keys.
The affected system is openSUSE Tumbleeweed since 20181018 build (20181015 seems to be ok, I've tried it one more time later and didn't notice the issue, it was the last OS build with GNOME 3.28, then it was updated to 3.30)
The hardware is ThinkPad T460 with SSD, 16Gb RAM. On T470p laptop (SSD, 32Gb RAM) with the same OS and packages version it's almost impossible to notice the issue, but it seems to be there too, just not so visible.
In general on T460 it seems like working on desktop remotely via network with some lags.