Volume control UX is one of those things that you don't notice when it works, but when it goes wrong, it can be incredibly frustrating. Anyone who's ever spent time tapping and waving at their headphones in an attempt to get them to work, or spent a while peering at their screen and making minute adjustments with their mouse in an attempt to get the volume they want will know what we're talking about.
When it comes to volume control on a computer or phone, Twitter user @0xDesigner has gathered up some of the absolute worst examples, which initially came from a Reddit thread of developers, who competed to make the worst volume control interface back in 2017. The results are worth a look. They range from the overly complicated: