Probably not going to be very useful to you, but since I use Windows I just use RDP to my desktop computer. This way I don't care about the laptop. Specs don't matter much, it can get stolen or scanned by border control without issue etc. I always pick up exactly where I left with zero hassle, don't have to install and configure tools twice etc, and it's virtually "native" feel unless I'm on some very dodgy cellular…
Maybe I misunderstand what this refers to but there are RDP software for Linux. I've used remmina [1] on Linux for a few years (now I am using VMWare Horizon at work).