In my experience, the stopper doesn't get stuck with regular use. It can get stuck after years if not used. Nor should it leak if the cap is well done (which isn't to say it doesn't happen - I once had an ebay purchase leak).
As for long term conservation, I don't know. Oxygen is an enemy (though not as much as light), and dab bottles likely don't
keep as good a seal as sprays. When a dab bottle seemed problematic, I transferred the contents to an Arabian style oil bottle (the one with the stick in the cap), which seem to keep a very good seal. But I don't know if this does any good.