Neighbours 2 doors down work from home. Their office is at the end of their garden, and their house is up a slope and above ours. They are generally a noisy family but I reckon you just suck up the noise of kids playing in the garden. I've had to ask them to close their house windows once after the 20th rendition of 'Shape of You' and I once had to ask them to collect their out of control dog from our drive as it had our cat cornered. We say hi if we meet in the street, no daggers but it's unfortunate that most of our interactions so far have been me being an old bat.
They have long speakerphone conference calls (current one has been going on 45 mins) in their office with the windows open. We hear it all, wherever we go in the house. AIBU to mention it? Windows are open because of the heat, which doesn't help.
Am quite capable of writing v reasonable note, am also capable of going round to speak to them. But AIBU? Not sure if I'm just being grumpy old bat again.