

The success of FOSS can in large part be attributed to copyleft licenses like the GPL. Without the protections of copyleft clauses, software just gets exploited by large corporations and end users are locked out. For just one example, if GNU software had used MIT, the entire free router movement (i.e ddwrt, openwrt and co.) would probably not exist today.
See: Free Software Foundation, Inc. v. Cisco Systems, Inc..
Edit: actually, I think by the time of this specific lawsuit, the sources for wrt54g were already released after community pressure, this article details the history a bit better.
The software runs, but unfortunately the manufacturers didn’t bother writing any drivers. I considered getting a ThinkPad x13s some months ago, but the driver support is so bad it couldn’t even do suspend properly. And this laptop was released 3 years ago.