Never left.
Used my Amigas professionally for music at a daily basis till the end of 1999. My Amiga 4000 had the same WB3.0 install for 14 years till I decided to install 3.9 at the end of last year.
I have PC's since 1996. I bought my first one a Pentium 166 MMX because of the Encore scoresheet music program, nothing related to gaming. I used the A4K for MIDI sequencing daily with Bars&Pipes and Samplitude for audio editing. Only jumped to the PC fully when was inevitable softwarewize at the end of 1999. And guess what program i'm using on the PC also, till today? Yes, Samplitude. Now in version 10.2.