As with anything, nuance exists. Does a monthly / annual donation to a FOSS developer count as a subscription?

I have a few things I’ve paid once for additional function or even banner ad removal that don’t receive updates. Though at a glance I don’t see anything I have installed that has a recurring cost and receives no updates.

I suppose there’s a fine difference between what I consider a subscription, and supporting active development of something I use regularly, but that difference probably varies person to person.