win1903 is soon out of the box, but still not consist in colouring layout; have a look at this sample, taken from Neowin site: Is it dark or light or colourful?
Well.. I got same delay here and there, starting apps and come back from sleep etc. It has some way to go before I change my Mint. But it's nice looking; U cant take away from them...
I did the same but with the difference I recommend MacOS to people in my age, for a hazel free computing...
btw, Linux Mint is a very good substitute for windows...