10 years used laptops are wonky. Maybe nice DIY project but definitely not as main workstation for travels. And if you want multiple 4k screens or newer peripherals...

My current setup is Dell XPS 13 from 2015 and portable Deskmini PC with Ryzen 7 5700g. This laptop is pretty hackeable ultrabook, over years I replaced chassis, keyboard and some ports. But it has only 16GB RAM and supports only 1x4k@30Hz, so it will be soon replaced by Framework laptop (64GB RAM, 4x4k screens).

And Deskmini is tiny 2kg PC with great desktop CPU. I found all high end laptops to be rather expensive and with insufficient cooling for constant load. With this I can have proper desktop performance in laptop sized package.

So my final setup will be two computers, with 12 cores and 128GB RAM and weight of only 5KG. I can use 7x4K screens and have total 20 TB of integrated storage. All cheap hardware with no crazy hacks.