So is there anything that a normal developer could do to help fix these issues? After all, isn't one of the points of OSS that we should be able to mess with it

So is there anything that a normal developer could do to help fix these issues? After all, isn't one of the points of OSS that we should be able to mess with it and change it to our liking? Or, am I correct in assuming that Linux has gotten so big and complex it'd be unreasonable to expect your average developer to be able to make a meaningful contribution? I really enjoy using Linux, but I'll admit I still barely understand anything about it after using it for several years and it isn't from a lack of interest or trying.