I was having a problem with an HDMI cable that would drop out if you manipulated the connector a certain way.
As I have zero tolerance for this kind of stuff, I whipped out the dykes and cut the connector off.
(Sometimes I even use the massacred cables as breakouts.)
With all these tiny differential cables like USB-C, HDMI, Display Port, I wondered how they can economically make them.
With a bit of chopping and hacking I could see.
It's a good solution since the biggest problem with multicables is getting the individual lengths all the same.
In days gone by, I made up TV-81 connectors for broadcast camera cables:
https://www.tvcameramuseum.org/cameracables/biw/biw-tv81-1.html