Why is the Sonos App (for Mac) the worst piece of software on my entire computer?

Well, Sonos did state several years back that they were no longer actively developing the PC and Mac apps.  Similar to S1 systems, they just provide bug fixes and security updates.

Been using Sonos for over 13 years. Controllers used to work great. It’s been updates in the last year or so that it’s gone down the crapper.

• I get the hyper sensitive mouse movement issues as well making it extremely difficult to scroll quickly through music. 
• The checkbox and dropdown arrow icons next to artist/album/songs constantly “disappear” or don’t work. I have to minimize and then maximize the app to get them to work again. 
• Every time my mac goes to sleep or I close the lid, when I return, the app has reset back to the top-level menu. I have to drill back down to where I left off every time, again a royal pain when you have a large library.

None of these issues existed in older versions of controller. They’ve all been introduced as part of more recent software updates (Stop changing an app that used to work!!)  

Or caused by Apple updates that could/should have been solved by Sonos updates? So Sonos updates are not the cause but the solution?

eh.  it works okay on my M1 mbp, but I wish they would compile it as an ARM/Intel universal app.   Don’t know why that’s not done yet, Sonos.

Although, the stream format is always different on my Mac when compared to the app on my iPhone - one will say 7.1, the other will say Atmos, I don’t know which is correct.

Because Sonos stopped development, except for bug fixes, on both desktop (Windows and Mac) controllers years ago?