There was a case this year, where SFC, a nonprofit organization won against Vizio for LGPL violation. It’s important, because SFC was just a normal consumer, not the owner of the original code. So now just a random user can sue this Rabbit company, and they should win, more details here: blog.lukaspanni.de/…/the-significance-of-the-vizi…
And there are other funny solutions, like when a Chinese “tech influencer/diy maker” Naomi Wu aka SexyCyborg just simply walked into the office of a Chinese manufacturer, and requested the source code in person: www.youtube.com/watch?v=Vj04MKykmnQ