First of all, kudos to the Zorin team! I tried Zorin on a vbox, and I was immediately impressed. Possibly the most delightful distro I have used so far. I installed it on my disk and I’m enjoying it so far.
I noticed that the night light under settings -> displays doesn’t work for me. Is that a known issue? I noticed the gnome version is 3.30. Could that be the reason? I’m on a Lenovo Thinkpad. Intel 8th Gen i5 8250. If that helps.