How to View Mobile Websites on Desktop Vivaldi?

[Eggcorn]

I'm using the desktop version of Vivaldi, and it's showing me the desktop version of websites. That's not what I want. For most websites, I want the mobile version of the site. How do I get that?

[pafflick]

There are multiple ways to approach this, as there are multiple ways of building a "mobile version" of a website, including (but not limited to):

1. Reduce the viewport area (by resizing the Vivaldi window or tiling multiple tabs - works for responsive websites).
2. Zoom in the page until it switches to "mobile" view (works for responsive websites).
3. Open the Developer Tools and click on the "Toggle device toolbar" (works for responsive websites, as long as the DevTools are open).
4. Use an extension to change the User-Agent of a mobile device (might work on some websites, but won't work on most responsive websites).
5. Try to look for the URL of the mobile version (like eg. m.youtube.com or m.facebook.com - though some might still require using other tricks, like using mobile User-Agent).

Perhaps there is an extension that could help you with viewing the "mobile versions" of websites, but since there are so many different approaches, I wouldn't expect it to work 100% of the time.