Altium had just gotten to the point that everybody providing chips was also providing an Altium library footprint and symbol.
It was really nice--for about 12-18 months.
And then I started getting Altium libraries that I couldn't pull the symbol out of and couldn't use without being logged in.
Fscking idiots. Talk about snatching defeat from the jaws of victory.
They had finally reached the point that they were an alternative to Orcad in commercial engagements, and then they gave it away in order to try to go after subscription revenue.
I literally picked up KiCad the day after I couldn't extract a symbol from an Altium library and add a couple of missing pins for a new part. I was that infuriated.
Right now, I'm evaluating KiCad 6.0 for work. I'll probably transfer over completely for personal projects (I've been doing more and more personal projects in KiCad over time with only PCB->Schematic back annotation holding me back from full transfer--that's fixed in 6.0 with the new file formats). It may take a bit, but I'll probably transfer over to KiCad for work projects that I'm the only designer on once I get a couple of projects under my belt with KiCad 6.0.
Altium was about to be a good high-end piece of software until they did this. Now it's homeless and it will lose to KiCAD for low-end things and Cadence for high-end.