Keep in mind there is nothing wrong with going home occasionally. The idea that you “have to” keep travelling is nonsense, head home for a week or two, see your friends/family, refresh and then go back out. Or, set a shorter goal and re-evaluate, such as plan to go for 2 moths and if it feels right, keep going for another 3 etc.
If you feel you can’t return home etc, I’d examine why you feel that way. Doesn’t have to be a bad thing, you can have your reasons, but make sure they are positive. Some people use digital nomading to put off dealing with issues they have at home. Travel is great, but it won’t fix things you are trying to escape from.
Best of luck on your trip!
Keep in mind that lying to your employer can open you up to legal repercussions. And it can also open your employer to same.
VPNs, however implemented, can be detected, and the average person will not maintain a secure set up in the long term. Your OPSEC needs to be perfect all the time, your employer only needs you to slip up once.
By all means “just go” but accept it carry’s a significant amount of personal risk, including financial.