Edge for Android keeps going to desktop mode

I have sort of figured out what it's doing, when you use desktop site it saves this in site settings, go to settings then privacy and security then site settings, scroll to the bottom to desktop site, if you have requested a site to be a desktop site it it saves this here and keeps opening as a desktop site you can remove it by pressing on the site and pressing remove or you can request it to be a mobile site from here, you can also go to settings general and change the option to always view a desktop site as default or as mobile site as default.

I use my phone for Microsoft rewards and I used to be able to just search what I needed for in mobile view then when I wanted it to be a desktop site I could just press that and it would stay as a desktop site untill i closed the tab then it would revert back to being mobile again but for some reason they have messed it up and it now saves the site to stay as a desktop.

I'm going to keep messing around with it, and try and change some settings but its just a pain having to keep going in to settings and changing things when it was just a press of one button.

You can also go in to privacy and security and then clear browser history leave cookies and auto form fill unchecked or other ones if you want to keep certain data but check site settings and make sure you change the amount of days to all time this helps with clearing some of the annoying settings.

Hope this helps and if anyone has any progress on actually fixing this let me know