I helped with completely overhauling a UI once. We let people know via email, about the exact date. Then just did it. I voted to keep both the old version and new version out for a while, but was over ruled. Rip the bandaid off policy! It actually worked out well.10% will react, but at least you let them know.
This is a work culture issue. Not sure if even the government can really help with this, unless they made new contract laws. Check out pre-school teachers situations (ho-iku-shi) in Tokyo, underpaid, overworked (without pay). We did a calculation once when my wife was working as one. She has a graduate's degree and was making a real wage of about $4/hr working 12 hour days. Luckily after two years her work culture allowed her to quit :0 Because in that work culture you can only quit at certain times of the year...
I think this just depends on the employer. I saw that statistic from an Upwork report. 40% of companies are not good with remote. If you have ever worked out of a coffee shop or home, you have remote experience!