The mobile version of mediawiki is not fully functional, and power users often dont want to be redirected there.
Android Chrome, Android's 'Internet' app, and Android Firefox beta all have a setting to request that the desktop version be served, however I think that is session based only.
MediaWiki Mobile has an option to switch to Desktop, which I read uses a cookie to keep that setting for 30 days. In my experience, this isnt working properly, but I havent had the time to work out why. On Android Google Chrome I consistently switch to Desktop, and I am constantly being redirected to Mobile. maybe the cookies are being cleared inadvertently, such as due to the bug that forces logouts when using multiple devices.
It would be useful to have a permanent setting in mediawiki preferences to allow a user to opt-out of mobile redirection - all browsers, no dependency on cookies (which would mean Orweb works), etc.