There isn't a standard Bluetooth implementation so there's a certain degree of issues in the space. Overall though, I think you're projecting your anecdotal experience.
I too use Bluetooth on windows with headphones[1] and keyboard[2].
While I can't define the experience problem-free, I had occasional issues to solve (mostly with audio, due to bandwidth limitations and such on some controllers/receivers), it's not been as bad as you define it.
In fact, I would say that it isn't very different to the experience I've had with android/iOs where I had too issues with bluetooth.
I too use Bluetooth on windows with headphones[1] and keyboard[2].
While I can't define the experience problem-free, I had occasional issues to solve (mostly with audio, due to bandwidth limitations and such on some controllers/receivers), it's not been as bad as you define it.
In fact, I would say that it isn't very different to the experience I've had with android/iOs where I had too issues with bluetooth.
[1] https://www.turtlebeach.com/collections/stealth-700-gen-2
[2] https://www.logitech.com/en-us/search.html?q=K400+Plus+Wirel...