Spotify isn't doing anything unique here, and it's not really a marketing campaign to explain away their UI. It's more of a showcase for hiring professionals, developers/designers/etc. Facebook has a similar one -> https://design.facebook.com/. Source: almost 3 years ago

Also, read anything published by Design @ Facebook. Source: about 3 years ago

Forget Sketch, it's yesterdays tool. If you want an alternative to Figma I recommend checking out Framer, which works like Figma but gives you the power to implement code and publish sites from your designs and has a mature community around it. Source: over 1 year ago

Most ui designers/ux designers now work in Figma. Some might use sketch. You can see the tools they use in a survey here: https://uxtools.co/survey-2021/. Source: almost 2 years ago

But I graduating nearly 10 years ago and a lot of design tools have changed since then. For most digital interface design (mobile, web, ux, etc) 70-80% of us use Figma which is free to play around with. Design tools are kind of similar though. Source: almost 2 years ago

Have a look at the Design Tools Database (which is based largely off of the Design Tools Survey). Source: about 2 years ago

It's no longer becoming. It is the dominant design tool. https://uxtools.co/survey-2021/#toolkit. - Source: Hacker News / about 2 years ago