Wow - that was quick! Thank you!
My S9+ and I can imagine a lot of recent Android phone also support LDAC too. I noticed having a look at the M2 the copper accent bits are silver, knowing what Sony are like with their other products I can't imagine there's any massive differences between the two, have you tried the M2/can you confirm the differences
That B&O pair looks gorgeous. I had a brief play with a friend's B&O PX headphones a few months ago and while that pair isn't for me as the earcups were quite hard on my glasses, the H9is earcups look significantly more forgiving though.
You've got me excited to try them now!