FEEDBACK: "Basic" Modern Browser functionality still missing from Edge...

leeuniverse  The discussion is interesting (particularly the responses back and forth), and I'm glad you posted.  As I recall, you (or another person) raised a number of the issues you raise in this post in the early days of this forum.  I haven't tried to find that old post, but I remember it because it mentioned tab/row placement as a major obstacle.  It stuck in my mind because the major browsers have been standardized on the "tab on top" motif for years.

You are experiencing the classic software implementation (that is, "requirements > specifications > design/selection > implementation") dilemma.  No browser, apparently, meets all of your requirements, although some come closer than others.  The dilemma you face is one we all have faced time and time again.

I suspect that all you can do at this point (assuming that Maxthon and 360Browser are not acceptable choices) is to prioritize your requirements, and then pick an existing browser that best fits your needs at this time (taking into consideration extensions and workarounds), adjusting your use habits to that browser's design/features limitations as needed.

I encourage you to take the time to report each feature request to Microsoft using the Feedback process.  If you do that, the feature request will be logged by Microsoft, considered, and tracked going forward.  This forum is useful for discussion but does not put issues on Microsoft's development roadmap.