Exactly. Just recently I struggled with pairing a bluetooth speaker with my father's laptop. Another, exactly identical bluetooth speaker paired fine just the day before. The second one couldn't be paired for two days, and I have no idea why. The fact that this bluetooth speaker has three different bluetooth modes with three different ways to switch between them via a single button doesn't help, and even after years I couldn't figure out which mode is meant for what purpose.

And the problem is that this happens regularly unless you never switch any device, which in reality doesn't happen, because nobody wants to buy nice headphones for every audio source. Bluetooth is a mess, and I'm glad I stayed with headphone jacks so far.