If I move from OFTEN USED FILES to DEVELOPMENT width of the panel does not shrink to default width automatically.
I have to move one item below to trigger automatic scaling
Hi - what version of Plasma are you seeing that on? The effect looks similar to the one observed in the following bug report, which had an intended fix rolled out in Plasma 6.4: 503582 – Kicker reduces the size of a switched-to menu to the size of the immediately previously selected submenu
Probably worth a bug report, then: Get Involved/Issue Reporting - KDE Community Wiki
For what it’s worth, when possible posting terminal outputs as preformatted text, instead of screenshots, is easier to read and much friendlier to folks using screen readers 