@jonas, @MarvinTM1, this may be related to a new feature in Sonoma where a capslock indicator is displayed in applications when the capslock key is turned on. Much discussion here.
Here's what it looks like:
caplok.png
the Indicator appears below the insertion point in applications where there is editable text—even in the Finder for documents and folder names.
For Strawberry it will display under any editable column:
caplok2.png
I could not get this issue to occur on 14.5, 13.6.7, or 12.7.5. But I could get it to occur consistently on 11.7.10—which doesn't have this feature—by turning the capslock on in Strawberry or turning it on in the Finder or other app and then turning it off in Strawberry.