Of course they are, but none of them have the punch of a 155.

Sure. Of course, Warsaw Pact (i.e. Soviets/Russia) use 152. The 155 is NATO. Just picking a nit.

And while on artillery duty, none of them are exercising the role of a modern tank.

Well...picking another nit...none of them are exercising all the roles of a modern tank. Mobile artillery is certainly a role. But they aren't acting as close infantry support, breaking through lines/trenches, etc, as well as neutralizing opposing tanks.

Never mind that most of the Russian inventory can't be thought of as "modern" tanks. They've lost a lot of their T-90s, and are not able to replace them as quickly as they were losing them. Hence the scavenging of their T-72s, T-64s, and others.

I'm more than happy to inform Dope, but if he refuses to learn, I can't really help him. I have LOTS of good information, and view a lot of deep-dives on various related topics (many by a guy that gets invited to defense symposiums and weapons shows, and has contact with officials and thinktanks all over the world...i.e. an "expert", a.k.a. the nemesis of the right wing dittoheads). The info is there if one can stop watching FOX and Friends for a while.