So I decided to create a speedrun.com Chrome application similar to the new Youtube and Twitter pop-out applications.
This is for people who prefer an app rather than a website
(Google Chrome only, Computer only!)
Download (Release): https://github.com/Kaixvny/Speedrun.com-Application/releases/tag/v1.0
Github repository: https://github.com/Kaixvny/Speedrun.com-Application
Quite Useless
What YouTube and Twitter did is making their website a PWA (Progressive Web App). Making a website a PWA can bring some benefits, but for those the website needs to support that (which srcom currently doesn't). But you don't have to install an extension or make a website a PWA to have a website as a separate window like that. In chrome (and some other browsers) you can just go into the three dots menu > more tools > Create Shortcut and then tick the "open in new window" checkbox.