I've seen ads of several varieties:

- Public websites are chock full of ads

- Downloading a file often means hopping through several redirects (each of which is an ad) and sometimes even having to "complete an offer" to get the final link

- Private websites have some affiliate deal with VPN providers. "We did the research, this one is the best, if you subscribe through this link you will get some perks on our website".

Of all the kinds of ads out there, that last one is the least objectionable to me. They don't force it on you, it doesn't clog up the important parts of the site, and they supposedly do some research to pick the best provider to affiliate with. I "never" click on ads but this one worked on me.

If you can get a private tracker or sonarr running, pretty much no ads.

Not until that asshat company wanting to deploy satellite constellation that displays ads from space. It's not like there are billboards in the middle of the ocean