It happens in stages. People doing low-spec 2d work like Illustrator are still on macs. That's fine, macs will handle that and it's still important work that has to be done. But eventually they are going to see the economy of doing it on different hardware through their relations with other members of the pipeline.

Once you have to crunch some 4k video or run a dynamics simulation, you switch to PC. The price difference between a mac pro workstation and a similar homebuilt is just completely insane, and four years later the homebuilt will be upgraded with new stuff and the mac pro will be literally worth more as metal recycling. There are practically no apple users in mograph anymore, even though just about all mograph artists started on mac.

Keep in mind that the people on discord and web boards or whatever are amateur hobbyists. I don't say that as a slur, it's a stage we all go through and I remember that stage fondly. In some ways it's the best stage. But they have not had to deal with economics yet. That will make them re-think their hardware elitism.