Upon boot the Time / Calendar Widget does not display properly (see screenshot)
if I right click the clock in the top right corner and select "Configure Event Calendar"
Then without changing anything on the next dialog "Event Calendar Settings -- Latte Dock"
Simply click "OK", that seems to fix the layout settings (see screenshot below)
Since you have not posted your garuda-inxi, as requested, we don't know if you have booted since the last update.
Have you changed the font/size?
Has it ever worked without errors?
If the bug persists, you should report it to the KDE team.