Had this issue in 2021, came back to edge its still here- posted on the community with no solutions
(topic 1) https://answers.microsoft.com/en-us/microsoftedge/forum/all/pinterest-forced-mobile-view-on-edge/44b8df57-7ec1-4332-8919-85dd74745869
(topic 2)https://answers.microsoft.com/en-us/microsoftedge/forum/msedge_issue-msedge_win10/pinterest-forced-mobile-view-still/6e253276-927d-41bb-8025-39fc06cf33e3?tm=1679601146554 - where someone direct-me here
The issue: soon after login, after any reload of front page or second visit, pinterests site becomes a specific kind of mobile view (and pretty much unusable to me). I think i recall that not happening on edge when i first tried it, so i suspect an update that brought 'integration' with pinterest is when the problem was created- btw, this particular 'mobile view' (entirely on users end, url doesnt change to mobile pinterest) is exactly like the installable 'web app' (installing pinterest site as app via edge, or installing pinterest in the microsoft store).
I have used 5 other chromium based browsers recently, that doesnt happen in any of them.
With some trial and error i figured out a cookie is saved on first load with the login thats causing it. On edge, inspecting cookies, deleting one by one i isolated it- its under 'br.pinterest.com' (pinterest opens with the br before in my region), under service worker, called br.pinterest.com. Deleting it fixes everything- the view is back to proper desktop view, nothing else is affected, no log-out, all of the sites functions work as expected (...1 time only, as any reload/new link will make it all happen again).
I suspect the cookie is doing just one thing, wich is forcing the app/mobile view- why its there in the first place is beyond me. Feels like some dev overlooked things, wanting to have a consistent look in the app and normal browsing, without even testing, since the mobile view is abysmal for desktop usage.
First time around i was hoping it would be fixed soon, but sending feedback, 2 community posts and 2 years laters thats clearly not happening anytime soon it seems... so how could i work around it? I just finished migrating to edge, i always have a browser running with important sites (work etc), i dont want to have a 2nd browser open (and eating on my limited ram) just to use 1 site.
Via edge settings i couldnt find anything to prevent that one cookie- either i prevent all of then or none. With none i cant login so thats out of the table.
Tried some chrome extensions that can manage cookies, 2 i think that could block cookies- but neither can see that particular cookie or block it. I did some searching around and found that aparently extensions cant access service workers (or its cookies), or at least none not set by then (maybe for security reasons? idk) - but if thats trully the case then extensions would be a no go
I also figured out some javascript on the page is what creating the cookie, and blocking javascript via a extension did prevent the cookie from being created... but it also prevented the site from working. I tried the extension 'noscript', blocking different types, but none of the extension options could prevent just that without preventing the entire site from working.
What can i do, right now? Is there some flag or hidden setting im missing? Some alternative user agent that would trick whatever microsoft did into not injecting said cookie on my machine? I may know a thing or two more then the average user but im no coder, not really tech savvy, so im just brainstorming here.
I just want to use a popular site thats been around for over a decade now, as it was intended and how it works everywhere else...
PS: ive also reached to pinterest directly, they told me to use another browser essentially, as in not on their end.