What we’ve seen in Ukraine is far from modern tanks fighting with modern tank doctrine. Yes, technically some of those tanks are ‘modern’, but many of them appear to have fake reactive armor, are poorly built, and they are being deployed without infantry, air, or logistical support. It’s the perfect recipe to lose all of your tanks.
Tanks are no match for drones. Anything that slow moving will get taken out and cheaply. Reactive armor is good for one maybe two hits and that’s only a couple of thousand in drones.
The bigger threat is dual charged ammunition like the javelins