>If you connect your bluetooth headphones to your phone, tablet and laptop, you're going to have a pretty bad time
I don't know. I think it depends a lot on the devices you have.
I have Bose QC35 headphones, and use them every day with my work and personal macbook, and my iPhone.
The connections are completely seamless. Here's how it's usually for me:
I turn them on at home, they automatically connect to my iPhone and macbook. I usually play music (spotify) on my laptop, when I leave for work I just open spotify on my phone and select "listen on this phone" and they automatically switch audio input.
When I come into work the headphones automatically connect to my work laptop and I can continue playing spotify there. All of these connections take a second or two.
In case I get a call the audio input/output automatically changes to my phone and I can take the call, and switches back when I'm done.
Plus I get about 15-20 hours of music listening time with one charge. So charging them isn't a big deal either.
