The only problems I ever had with Linux over last two decades were exclusively "obscure problems". But there were a lot of them and they are always different and very entertaining. Basically it all boils down to the two factors working simultaneously - 1) bad QA process, and 2) extreme fragmentation of literally everything on every level, increasing test coverage beyond possible.

For me Linux will probably never be "home ready" and will stay on servers and embeds where it is perfect and amazing.