Bug 468163

SUMMARY
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If the Alt-Tab window switching ("Walk through windows") is only mapped to one key (e.g. the function keys) from the shortcut settings, it only switches back and forth between the two windows most recently opened, instead of circling through all the windows. On the contrary, assigning "Walk through windows (reverse)" to one key correctly walks through all windows in reverse order.

STEPS TO REPRODUCE
1. In Settings → Shortcuts → KWin, assign a single key to "Walk through windows" (e.g. F3)
2. Apply and press the key

OBSERVED RESULT
It only switches between the most recently opened two windows.

EXPECTED RESULT
Pressing the key walks through all windows.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.27.3
KDE Plasma Version: 5.27.3
KDE Frameworks Version: 5.104.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION
Please move this to the correct category if this is the wrong one. This is my first time reporting bugs and I chose it only based on the description :) Also I hope the summary doesn't come off as offending, I don't mean it.