I find the bookmark manager terrible, I rather paste URL in notepad than endure the bookmark manager's UI. I do end up dumping thousands of tabs into the bookmark manager, but never in 30 years have I bothered to use a bookmark. Except for the bookmarks toolbar.
Keeping the extremely primitive bookmark manager organized would suck up more of my time than all other browser task combined.
This discussion not about the bookmark manager, it is about pasting tabs from my clipboard. And the answer has been found. Unfortunately it is a two click process.
And opening 100+ tabs at once still clogs up the system because they all load immediately.