I bounce around between keyboards a lot, because I work on industrial machinery with dedicated computers. I use a standard, flat, 105-key keyboard (with quiet tactile mechanical switches) as my daily driver. I also run 2 laptops, a personal Thinkpad and a company Latitude, usually plugged into a dock with the aforementioned keyboard (I have 3, one on my cart in the shop, one in my home office, and one in my work office).
It takes me half an hour or so to adjust every time I switch machines. The laptop to mechanical isn't so bad, but in particular, the Dell and Lenovo keyboards have different orders of the Function and Control keys, and I constantly enter the wrong key combos if I'm coming from the other laptop. The transition from mechanical keyboard to the rubber ones on machines also leaves me using either too little force to register a key, or slamming my fingertips into the steel backplate at the bottom of travel. And the Fanuc CNCs are high-dollar, highly functional machines, but their keyboards - ugh! Mushy, wobbly, weird row/column spacing and alignment, weird layout... fortunately you can plug in a USB keyboard if you carry one with you, but otherwise I have to slow down to a hunt-and-peck crawl or I make constant typos in an environment where typos can be really expensive.
I do acknowledge that switching from a full size keyboard to a laptop, or from a laptop to a phone keyboard can be pretty smooth. And that the short time adjusting can easily be worth the effort, especially if you're going to be working on a given machine for a few hours. But if they are physically similar and functionally remapped then I don't think I could do it.