That's why I don't consider Tolkien to be part of the genre.The only "master of the genre" I'll concede is Tolkien, because he's so good at worldbuilding. Worldbuilding ruins far more books than it ever helps, so the fact that he managed to pull it off so incredibly well is a genuine accomplishment for the ages.
Tolkien didn't write 'Fantasy', he wrote pieces of fiction almost as an afterthought to illustrate the world and history he had created to put the languages he had invented into context.
If 'Fantasy' authors bother about world-building at all, they do it the other way around:
They first and foremost want to tell intruiging stories, so they'll only do as much world-building as required by the story they're trying to tell and no more. It's entirely different goals.
In general, I much prefer 'Fantasy' novels written by authors that also or primarily write SF novels since they tend to put a lot more thought into creating believable worlds. Most pure 'Fantasy' writers are lazy and just reuse existing tropes knowing that their audience will be acquainted with them.
Naturally, exceptions exist. But you really have to search for them (or ask around in forums like this to find threads like this one
