I use AdAway to modify the host file on my Android phone. I literally can't load ad content; sometimes it gets in the way since the ad is the easiest way to get to what I want to click occasionally, lol.

Also, the Vanced app can modify apps to eliminate ads. Or X-Manager for Spotify does a similar thing.

Then there are alternative front-end apps, like NewPipe/LibreTube for YouTube, Xtra for Twitch, and others.

Or there is just straight piracy to avoid the ads, but in their own apps. Stremio + Torrentio + a Debrid service is basically a pirate Netflix app with full control of your stream quality.

Regardless, I think his point mostly stands; it's a very small percentage of users modifying apps to avoid ads or telemetry.