Modern warfare seems to be very similar to world war two style warfare. Just with the things you listed added ontop. It’s not like they replaced the warfare.
For instance the war in ukraine includes Blitzkrieg combined arms type offensives, world war 1 type trench warfare, soviet type attrition warfare, and some of the most modern drone and missile warfare.
Sometimes it seems a couple bad faith posters care more about blaming everything on democrats, than the actual problems themselves.