If I have Linux installed on an SSD and I plug it into a Windows computer (a PC which I did not use to install linux onto the SSD), would I be able to use linux in that PC from the SSD?
If I have Linux installed on an SSD and I plug it into a Windows computer (a PC which I did not use to install linux onto the SSD), would I be able to use linux in that PC from the SSD?
Yes, but with some preparation. First, secure boot has to be disabled. Then you need a FAT32 esp partition on your SSD which has to become the system boot partition. Easiest way is unpluging all other hard drives and ssds and tgen installing the linux distribution of your choice to the ssd. You can install different drivers for all circumstances, it is for example no problem to have drivers for AMD and NVIDIA GPUs installed, only the right one will be loaded. You can also optionally prepare your ssd linux for mbr systems if you want compability with really old systems. Archwiki has a good article about that iirc.