a major art difference between Archie and IDW is that Archie had a dedicated inker (by the time the reboot occurred it was Terry Austin on the main book, Jim Amash on Universe, Gary Martin on Mega Man, and Rick Bryant on Boom), while artists on IDW usually do their own inks (and usually when there's a separate inker involved it's the colorist doing inks).
Specifically the stuff on IDW with separate inkers are:
Yardley's early stuff when he was still working on paper (issue 1 was inked by Amash and Bob Smith, while 5-6 were just Amash)
Lamar Wells' work (since he also does his art on paper): ABT inked/colored his first few covers, then Reggie Graham inked/colored a few (and also inked but not colored his art in issue 21), followed by Bracardi Curry inking/coloring his art in the 2020 annual (with Gigi Dutreix also inking some pages)
Diana Skelly's art in issue 16 (by Priscilla Tramontano)
A lot of Aaron Hammerstorm's work (his issue 21 cover inked/colored by Tramontano, Graham inking/coloring a lot of his stuff including that metal sonic story, Bracardi Curry inking some of his pages in the Bad Guys issue he was doing fill ins on)