Ive never met a Graphic Designer that works on a PC in the UK.
Well, it is quite opossite here. Most designers use PC primarly nowadays. I have friends and know a bunch of people - freelancers and others - who works in design fields, some of these do illustrations for living and most do use (almost exclusively) PCs.
Yes, you will see some Macs here an there, especially in printing houses/shops, museums etc. were they did digitalizing etc., but they are quite old now (average is somwhere 5-7+ years old) somewhere sitting in the back and they get rarely used anymore. Macs were once the primary platform for design (in the time of QuarXpress, Aldus Freehand etc., when the Windows counterparts of these applications were mostly a joke), but since most of the Adobe CC and other bigger and smaller apps are availabe for the Windows OS, you get the same results on both platforms etc, there is simply no need for Macs anymore.
Some weeks ago I asked a girl, who just did her degree in design field, what will she invest and she said that it will be a PC, because she can buy/choose whatever configuration she wants.
...
Our TV and radio stations use mostly PCs with PC video/audio editing software, Macs are very rare.
Most Mac users here are:
- the veterans, who know and love the platform since decades or because they cannot/wont switch for whatever reason (they have invested much into the Apple platform)
- some students, but this is only a small proportion compared to pc users
- younger and older people, who are middle/higher class with good income and they (or they parents) can afford it.
- some DJs and some musicians and/or sound recorders/technicians in sound/recording studios (but also these aren't really that many)
- others like some bosses in companies, because the Mac has/is still somehow a status symbol (as is the iPhone), so you look cool if you have one, even if you can't use it. But it looks good on the desk
😉
BTW, so that I wont be off-topic:
You can always invest into a self-adhesive matte film for the iMac if the glossyness bothers you. Or just connect a secondary (matte) screen and use that as primary.