Also the project in the original link is Mac only (hence the irony), so evangelizing Graphene and Qubes seems a lot out of left field.

You are creating content to share with mobile users. The onus is on you to go where the market is to reach those people.

Pixel phones are 4% of the market and bespoke Linux versions of that are a slim fraction of that slim fraction.

Most people are fine with the tradeoff of living in a walled garden and not playing unsupported formats. As a content creator who obviously wants to reach them, the problem is not the users.