Is there are reason you want the Sony headphones? I just got a set and I am probably going to send them back.
They have too many compromises for me. To start with they can only be paired to one device, so it you want to answer/make a call while using you computer you cannot use the headphones without dropping the computer connection, and then pairing to your phone. Also, they are not the most comfortable and voice quality on call is poor when in a quiet room, unusable if there is background noise.
I will probably go back to my 4 year old old QC-35s for on the go use, and use my Senn HD 280 Pros for my desktop meetings and recording where a wireless connection is not needed.
Yes, two reasons specifically. One more important than the other.
1. I find their NC better than my QC-35s (own them) for airplane commute noise. My Sony's literally take the entire noise away.
2. I LOVE the hand over the right can to allow audio passthrough. I use this with flight attendants and other similar situations regularly.
I'm not s super audiophile, but I love music... and listen to at least a couple hours a day.. I don't find the Sony's to be worse than my QC-35s. I also use neither for voice calls. I use my AirPods for those.
For device switching with my Sony's, here is my workflow. In this situation I'm connected to my iPhone and want to connect to my, say, MacBook.
Turn off headphones with long press to power button
Long press power on button until "pairing" sound
go to bluetooth icon on MacBook doc
Mouseover device and click connect
I don't find it terribly inconvenient but I also only switch devices a few times a week (switch back to iPhone or iPad on first flight of week... switch to desktop in hotel room.. switch back to iphone/ipad on flight home).
Regarding comfort, totally personal, I find them incredibly comfortable. I read a couple reviews that said long sessions gave fatigue. I did a transcontinental flight a few months back and had them on for 5-6 hours straight... no issues!
And here is my #1 thing I love about them... usb-c Charging. Yes I know I could get an adapter for the QC-35s. But simple things matter... My entire cord bag to charge MBP, iPad Pro, iPhone, external battery, AirPods, Sony's...
it's just 2 chargers... USB-C and Lightning. I saved 1.2lb to my cord bag when I consolidated to USB-C and switched to the Anker GaN 60 2xUSB-C brick.