"Actions" menu in files blurry

After a fresh 19.0.1 install (and a quick update to 19.0.2) I selected multiple documents in the ‘Files’ app and clicked on the ‘Actions’ menu. For some reason, the contents of this particular menu is blurry, while the rest of the interface is just sharp.

Anyone else seen this issue? If it’s not reported yet, where should I?

Nextcloud 19.0.2
Firefox 80.0 on Ubuntu