I am sure there is a better UX/UI solution for this, but I sketched one out quickly to help explain the problem.
I find in discovery phase, as I’m trying to stay divergent, I follow links and ideas that may be adjacent to the problem I’m trying to understand. I may start down a branch that I’m not ready to commit time to, but I feel there might be value to return to at some point. The result of this is many open browser tabs, which tend to compete for resources with Miro itself.
It could be useful to research oriented designers if there was a browser plugin that could capture all the open tabs in a window, that I could transfer and have represented in a group or cluster on my Miro board. Later, when I’m ready to synthesize those threads, I can reopen them all in a new browser window.

Thanks for reading.
B.