The reason why I downgraded from Premium to Basic is because of the lack of resolution of issues.
There's no value to be had when they're constantly adding new features without resolving issues the community is experiencing.
I fail to see how what is in settings as "Multipage clips "Clip all pages into a single note"" is the same thing as what appears when clipping a page as "Clip format "Full page"" -- isn't that a given a Full page clip will clip to a single note? Nothing in the page you linked to mentions "Multipage clips "Clip all pages into a single note""
As for merging..
In my case the originals or the merged don't end up in trash. The originals remain in the notebook, while the merged note completely disappears.
I wanted to keep 6 webclips together, so merged them, merge completed, sits there several seconds and then disappears. Tried turning off wifi to stop the note syncing with server and getting nuked, but as soon as I turn on wifi, the merged note is gone. Creating a separate notebook just for 6 web-clips is clunky, as is installing some legacy product which idk would even run on my Mac.