To be fair, 37 Signals (Basecamp) which is behind ruby on rails, changes their front end philosophy with every new major version of rails

And to be fairer, it's generally a pretty good philosophy for greenfield apps at that particular point in time, but if I started an app on rails 4 or 5 there's no way I'm updating my front end every time they change their minds about how front end should work

They believe this now, in 4-5 years it'll be XYZ next thing

It's been a while since I used it but I did a limited trial of Hey and it was genuinely miserable to use. Not only did everything take a few ms extra, the entire interface was so incredibly janky and had no accessibility concerns at all. They were shipping their website to their mobile apps and it was horrid. I would not put Hey as a shining example anywhere for this philosophy

It's been a long time since I used Basecamp but that was decent enough