I just miss the desktop mode link on the bottom of every page. Sure it's harder to use, and I spend most of my time in mobile view, but sometimes I just need to get shit done.
I actually sent them a support ticket about this, and this was their reply:
"I understand how the previous workflow would be useful, and we apologize for the inconvenience it has caused.
However, the good news is that the mobile team is working on releasing iOS and Android GitHub mobile applications early next year, which should resolve some of the limitations of the current mobile site."
Like really, just give me the desktop view back ffs.
You can still use the desktop site by using the 'Request Desktop Site' on your phone's browser (at least on most browsers). If you're logged in to GitHub, you can enable 'Opt out of mobile pages' in your account settings, though it sounds like you want to use both.
Best example of the above is YouTube. Have to reload like 3 times to get the real desktop site on iOS just to have background video playback and access to all videos on most pages.
(This is with YouTube set to request desktop site always in settings).
On iOS at least, the "Request Desktop Site" option has been moved under the reader options in the URL bar. It seems to work for me, though is annoying.
I actually sent them a support ticket about this, and this was their reply:
"I understand how the previous workflow would be useful, and we apologize for the inconvenience it has caused.
However, the good news is that the mobile team is working on releasing iOS and Android GitHub mobile applications early next year, which should resolve some of the limitations of the current mobile site."
Like really, just give me the desktop view back ffs.