SUMMARY On Wayland some applications don't show resize handles for me on their lower three edges. The top edge works. STEPS TO REPRODUCE 1. Open Konsole 2. Move the mouse to the lower edge OBSERVED RESULT No resize handle appears EXPECTED RESULT A resize handle should appear SOFTWARE/OS VERSIONS Operating System: openSUSE Tumbleweed 20210127 KDE Plasma Version: 5.20.90 KDE Frameworks Version: 5.78.0 Qt Version: 5.15.2 Kernel Version: 5.10.9-1-default OS Type: 64-bit Processors: 4 × Intel® Xeon® CPU E3-1225 v3 @ 3.20GHz Memory: 11.6 GiB of RAM Graphics Processor: Mesa DRI Intel® HD Graphics P4600/P4700
I am pretty confident this is a regression, although I cannot say that for sure.
Another affected application is Dolphin, others like systemsettings work fine. Possibly the root cause is at a higher level, but I thought for the beginning I'd file this for a specific app.
I can resize Konsole 20.12.2 just fine in Plasma 5.21.3 with Wayland. Are you using a custom window decoration? Please also check the "Window border size" setting in the Window Decorations kcm.