Not sure where you’re located, but at least in the USA it’s definitely illegal for an employer to discriminate against a medical diagnosis like that. They aren’t even allowed to ask you private medical questions during the hiring process.

I would look for a dongle that specifically markets itself as being Raspberry Pi compatible. Most stuff you find will prioritize Windows, but if it’s marketed to work with the Pi you know it’ll have at least some level of Linux compatibility. Once you find one, try to figure out what chipset it uses, then search if it’s supported by a handful of the distros you wanna try.