Also you can build some small but high powered machines. I've got a mini ATX build with a 12900 ks, and a 3090. Fits in a carry-on, way faster than any laptop.
Also if you're spending that long in each location, it might be viable to just buy monitors at your location, especially if you think of it as the cost for enhanced productivity.
I'm in a similar situation so I've tried to build as capable of the travel setup as possible.
You can also throw desktop monitors in a checked bag, I'm usually only bringing one, but you can fit two to three.
It really depends on how frequently you travel, if you're going to the same locations, if you can store stuff there, and how much additional cost are you willing to pay for a better set up.
The luggage shipping services out there can be fairly reasonable, if you don't want to lug that much gear back and forth with you. Do you have a home base that you go back to, or are you jumping between locations? I used to be fully nomadic, I spent a lot of time optimizing.