I installed the developer beta of MacOS 26 on my M4 MacBook Air.  Install went smoothly as is the usual with most Apple software installs. I am not convinced by the liquid glass look. It seems half baked and may well be because this is a beta. On the other hand many elements seem unchanged or only with minor tweaks. Apple is at its best when their updates appear seamless. When you don't have to learn a new way to do something but rather the thing you do is now easier and smoother.  The translucent elements are somewhat gimmicky and also a step backward for usability if your eyesight is not perfect. I don't expect Apple to design for old people but lots of young people have less than perfect eyesight too. The other thing that is bothering me at the moment are the floating controls and buttons.  They seem to have decided that buttons need to ever so slightly hover above the app window and be distinguished by a tiny difference in tint from the surrounding area. Also more stuff seems to be responsive/dynamic so the errant mouse cursor can change the look and feel of the window.  Are those rounded corners again on all the windows?  Even more icons in the menus? I am going to turn on Apple Intelligence and see what happens…