@andrew84: And of course once again, a tab can no longer be selected with a simple click by sliding the mouse along the top edge of the screen. This was broken and then fixed several versions ago in Dev, and even with the gap present for aesthetic reasons, it was still coded to allow selection of a tab by just sliding and clicking. But here we are again. Every browser I've used has this "feature". Some may even remember older versions of Opera standard that had a toggle setting to remove the "gap" between the tabs and the top of the screen.

DNA-110126 [Win] 1-pixel edge design in maximized mode
Why? The ability to select tabs easily by sliding the mouse cursor along the top of the screen is now broken. This was fixed a few versions ago, to match the behavior that standard Opera always had.
Also cannot close the browser from the top RH corner of the screen, now have to move the cursor inside the X. Also, in a window, the top edge can no longer be used to expand the height.

There's space between the + icon and the magnifying glass to move the window, no matter how many tabs you have open.

Great to see that you can once more just slide the cursor along the top of the screen and click to select a tab, and no longer have to aim at the tab itself. Nice QoL returned, and still retaining the modular look, really like it. Thanks.

Loving the new Opera One, using it as my daily driver, (Standard is now backup) . The Islands, the new Sidebar layout, the modular look and the way the UI seamlessly flips between workspaces. Great package imo, and running silky smooth for me, seems really stable. Tabs look wider (closer to Opera standard) than the last build, nice, much easier to read "at a glance".
Question re: #DNA-107573 Remove Use bigger tiles from Settings# --- My Tiles appear to be the same size, so perhaps the bigger size is now default? To be honest I'd really like an option to make them even bigger, as I'm on a high res U/Wide monitor and have a ton of screen real estate. Several steps +/- would be even better, then it would cater to everyone.