Sometimes they work, sometimes they don’t. It really depends on whether there is some enthusiastic person who maintains a driver.
For example: My TM16000 works almost like in windows, my Logitech panels work about 60% with some tinkering, my Oculus Rift S works wonky and without hand controllers.
Those shakers are standard audio devices IIRC, I wouldn’t be surprised if they worked just fine.
But yeah, flightsims are a niche and Linux gaming is still a niche. Specialized simmimg hardware is another niche.
Niche³ is usually bad news.