Ehh, I don't know if that counts. Lots of sites want me to join on my phone or download an app, even though they are desktop compatible.
I'm irked when companies go for this form of anti-documentation. It 1) makes me feel dumb 2) wastes my time 3) I'll eventually figure out what you're not telling me, so you might as well cut to the chase.
it's not that silly. We're mostly all developers so its easy to forget but most people dont have desktop computers nowadays. Mobile is the primary experience for many people.
And remember what it was like when they did have desktops?! Thank the gods they use their phones instead now. Leave the desktops to those who know how to actually use a computer.