I'd really urge the author to rethink doing something like this at all. The app looks great but those stats on the front page were an immediate turn-off for me (not to mention how it pops up in what looks like an annoying cookie banner). You can talk about user activity on a web service where it makes sense to be hitting a server, but for a local app that should really just be a nice GUI for ffmpeg, I don't want my computer updating you whenever I use it with data about how I used it.

And the types of users who are going to be using something like an ffmpeg wrapper are the types who are gonna care about something like that.

It's not SaaS anyway, so why would I care about your current to-the-hour success metrics? Might as well just slap your amount of sales up there, it's less intrusive at least. Put some user testimonials, anything other than telemetry data.