Make sure you account for the value of time saved. Time is precious and there's never enough, if I can find a way to add 40 more minutes to my day I'm going to value that immensely.
Don't use it for additional time spent working uncompensated! Your commute wasn't paid for (typically), so don't give that time away to someone else for free now that you're saving it.
Personally, having a long bay area commute, i now use that time instead to sleep in AND go for longer walks with my dog, that we’d usually reserve for the weekends
Your employer doesn't directly pay for you to go to school, but most people would still see that work eventually pays for education.
Commuting is similar.
But I agree with the gist: if you figure out how to be more productive, eg by doing some task faster or by eliminating your commute, there's no moral obligation to hand over all the gains to someone else.
In my case, the current situation adds 10 hours to my personal time. Thinking hard about moving to a remote-only position next. Sadly, moving closer to the workplace is out of the question because no force on earth will bring me to live in a densely built up city ever again; I reject urbanization for myself. I'd rather enjoy a green, quiet countryside.
