I agree, would be great! Amethyst could with the F-Driod and Obtainium releases. The Damus 'Freedom Edition' on desktop could as well. Gossip and other desktop clients could as well, which could eventually also be available on postmarketOS and mobile. Play Store versions and Apple App Store releases could give notice about the missing funtionality and the alternative versions available (if they don't already). I'm not a huge fan of PWAs, performance seems suboptimal, limited functionality, storage and sessions are typically shared (XSS).