On mmm.page Discord, someone shared these screenshots of pages in the new Safari - with the tab bar blending into the pages.
Seems really great for this particular 'whole page' look!
The only thing - wish I could have images crossover under the tabs. Like a sticker pattern that the tabs could just float on top of.
The discussion about the new tab bar at 12:30 makes me very glad that Multiverse's menu is at the top...