I don't agree with most of these comments, except for the swipe down with two fingers. But it still looks like it's early in development, and it'll be a while until Android 16. I don't think they'd make a two finger gesture the only way to access quick settings, especially from an accessibility standpoint. They'll probably change it.
Current stock android quick settings suck. So much wasted space. Changing some settings is inconvenient. It looks quite bad, especially the brightness slider. And editing the tiles is currently extremely slow, difficult and janky.
This change improves the looks. The number of tiles per page is changed from 8 to 12/16. Toggling WiFi or Bluetooth on/off will now take only one tap instead of three. Editing tiles looks smooth and easy.
This isn't change for the sake of change, this is a fix for one of Android's weakest points.