My observation when I'm talked to people about my experiences is that they imagine travel is a lot more expensive than it actually is. The most expensive thing I ever had to pay for was my plane ticket to get out of the US. Once I was abroad, even flights were significantly cheaper.
Do you find yourself more time pressured? More stressed? Spending more on conveniences to make life easier?
It's not like I was homeless, I would know I wanted to spend a month or thereabouts in a city and I'd get an AirBnB or otherwise arrange accommodations, I'd pay for a coworking space to have a good place to work with stable internet connectivity (this actually was one of the most difficult things in some parts of the world, back then), and I'd eat like the locals either cooking at the AirBnB or going to local restaurants/cafes.
I don't think being nomadic has to mean living like a hobo, those are not necessarily the same things. I never stayed anywhere that didn't have basic indoor plumbing at least, although a few times I'd have to hand wash clothes in a sink and hang them to dry outside the window, which was kind of a bummer but not a world-ender.
Overall, my productivity didn't suffer at all, and I didn't find it stressful from the things you mentioned with even a modicum of planning ahead. In fact, being able to explore different parts of the world and head out when I felt satisfied or got bored, meant that I always had some sort of moment for inspiration that helped to fuel both my curiosity and my work.
I'm extremely productive and I'll work weekends, but if on a Tuesday at 11am I feel like going on a trip, I absolutely will and you can't stop me.
Granted this was no life of luxury, but I wasn’t exactly holding back on much either.