Comment by applfanboysbgon

I see. I was not aware of this system preference. Perhaps I would be if Apple didn't intentionally wall people out of developing for it unless they participated fully in the ecosystem by purchasing OS-locked hardware that they intentionally deter emulation of while requiring paying them for the privilege to develop for them. I won't ever see eye-to-eye with users who voluntarily opt into that environment, so if the scrollbar behaving slightly differently than expected but still reasonably well is truly a dealbreaker for somebody who stumbled onto my webapps, oh well!