FEATURE REQUESTS: Detailed Listing of Needed Key Features.

leeuniverse 

(1) Double-click a tab to close it
Just middle-click on a tab with your mouse to instantly close it

(2) Drag-and-Drop selected text to search
Select the text, right-click, use the second option: "Search the web for"

(2) Drag-and-Drop a link to open a new tab
Have two Edge windows on-screen.  Drag a link from one into the other.  Edge will instantly load that link in a new tab.  (You can also drag a link over any tab; when you let go, Edge will switch to that tab and replace whatever site was in that tab with the address in the link you dragged.  You can also drag a link between tabs, or at the end of your tabs, and let-go when the white-arrow is where you want a new tab to be created; let go, and a new tab opens in that place)

(3) Option to have Tab Row at top, middle or bottom
Edge thesedays has a "vertical tabs" feature, where they can go-down the left-hand side (and in a future-version, right-hand side), but not middle or bottom. Try Vivaldi: that supports tabs at the bottom.

(4) Button to "Click to Restore Tab"
Right-click on any tab, or any empty area on the top-bar, and choose "Reopen closed tab". Your most-recently closed site comes-back. Do this repeatedly and it will keep re-opening in the order they were closed, most-recent to oldest.

(4) "Right-click to show up to a 10 page history [for that tab]"
Click on the tab you want to do this for, so that tab is the active one. Then right-click the back or forward arrows to see history related to just that tab.

(5) Options to make tabs open next to the currently open tab, open replacing the currently open tab, to the right or left, or open after the last tab, focused or non-focused
Next to current tab = middle-click a link or bookmark
Replace the currently open tab = click a link or bookmark
To the left = drag a link or bookmark to where you want the tab to open, and when the white up-arrow is in the correct position, let go (or once the tab is open, drag it to where you want it on the bar)
Non-focused: middle-click a link or bookmark; the tab won't become active

Focused: is this any-different to "replace the currently open tab"?

(7) Translate pop-up when going to a webpage that's in another language
Edge does do this. Go to edge://settings/languages and check "Offer to translate pages that aren't in a language I read" is turned on.

(8) Use Chrome Plugins with us logging into our Google Account natively
You can add extensions designed for Google Chrome into Microsoft Edge thesedays; and when you visit the "Chrome Web Store" inside Edge, there is a "sign in" link in the top-right. Try signing in with your Google Account and see what happens.

(9) See our saved passwords
Go to edge://settings/passwords in the Address Bar and look under "Saved passwords"

(11) Allow switching to a different browser core
Why? Edge thesedays uses Chromium, which is used by virtually-all other browsers: Brave, Vivaldi, Opera and Google Chrome all use it. WebKit is Apple's engine, and is only available on Apple devices; there's no official Windows version thesedays. You can use the IE engine via "IE Mode", though this is only for enterprises.  (The only-other major browser-engine available for Windows thesedays is the Firefox one... if you want it, just install the Firefox browser!)

(14) Save snippets
Look into the "Collections" feature in Edge; it will likely do what you want

(15) A simple screenshot tool
Right-click a webpage then click "Web capture".  Windows also comes with built-in screenshot tools: "Snip & Sketch" (the newer one) and "Snipping Tool" (the older one)