I think this is likely quite outdated by now - a lot of artillery is definitely still is use now, but there is also a very large gray zone dozens of kilometers around the front line where remote controlled UAVs (usually single use FPVs and reusable bomber drones) will quickly identify and strike anything that moves.

Due to that I have seen many people monitoring the war to estimate that drones are now causing more casualties than artillery - both due to being much more precise & by forcing artillery to move further back & fire less from the gray zone to avoid itself being destroyed by drones.

In any case things are moving pretty quickly & the current state is very different than just a year or two ago.