I also get this issue since the Plasma 5.25 update, maybe even before that. Hard to estimate, because I don’t use that options everyday.
My guess is, this is some regression, and it will be fixed. This happened many times already…
In the meantime, I suggest you go to:
Find what you are looking for and install from there. If you want an easy install, without thinking what goes where, I suggest installing from AUR ocs-url package. Then you will be able to click on “Install” button and the rest will go automatically.