Looking for examples of best-in-class of PWAs, a few of my favorites listed below.
Pinafore, a Mastodon client: https://pinafore.social/
Resilient Web Design, a PWA book by Jeremy Keith: https://resilientwebdesign.com
2048, the game: https://2048game.com
I see a bunch of praise for the Starbucks PWA, but I wasn’t too impressed: https://app.starbucks.com/