Is IE mobile different from IE 11?
It's 2 versions of the same thing really. I don't know how I did it or if it is by design and it has been a long time that I've been using it this way so IDK what the heck I did. YMMV.
I only have one IE on my All Apps list... If I tap it from the All Apps list it opens in desktop mode and looks just like it would on PC with tabs, bookmark bar, etc. all on the top of the window and the classic desktop controls. If I pin it to task bar, it will always open in desktop mode
If I go to All Apps and pin it to Start and open it from there it always opens in mobile mode with the address bar on the bottom and classic mobile controls. Note that when opened, you can not pin mobile IE to task bar even though you see the icon there.
I believe it has been this way since last September when RT got the 10 style Start Menu. I've gotten used to it and for the casual browsing I do on the 2520 I just stick with the mobile IE...
Irregardless, I just went to YouTube in each, signed in on each, watched videos on each... Got no warning on either about support ending. Are you sure you are up to date?