That’s not the worst possible scenario, I’d love to see the Snap Store completely replaced with decentralized FOSS alternatives. Any scenario in which the Snap Store takes market share from decentralized FOSS alternatives is considerably worse.
Also, who said I wouldn’t use proprietary apps? I refuse to use Snap because Flatpak and other FOSS application packaging solutions that aren’t locked to a store controlled by a single for-profit company already serve my needs. I don’t have any objection to using proprietary apps that don’t have alternatives that meet my needs.
Most types of ads can be blocked with uBlock Origin, while only some kinds of paywalls can be skipped with Bypass Paywalls Clean. Ads are the most privacy invasive monetization solution and with ad blocking becoming more common, I don’t think ads are a sustainable way to fund content in the future. Still, I would prefer to see voluntary subscription and donation options rather than hard paywalls.