This may be considered a bug, but I’m not positive.
I have a user that is stuck in desktop view on a mobile device (who knows why he clicked desktop view) because the hamburger menu is pushed off the screen by our long logo. I can’t replicate this on meta because the logo fits nicely even in desktop view.
I could tell him to change the URL to get out of desktop view, but this is not possible in the discourse app. I can temporarily hide the logo so he can switch back, but an actual solution long term would be nice despite it being an edge case.
I tried disabling all theme components and plugins and can still replicate this.
Yes, I agree, this needs a fix in core, I think the best solution for it would be to enforce a max-width on the logo for small (below 768px) window sizes on the desktop layout.
Also, easiest way to replicate this by using responsive design mode on your browser, but NOT using a mobile user agent. That will load the desktop site, and then you can resize the window to small sizes. (Example below from Safari.)