It's a long read, so to sum up;
Ukraine doesn't have enough munitions or vehicles to counter Russian numbers. Ukraine isn't communicating with DC - leading to NATO being unable to catalogue the conflict accurately. DC is using Ukraine's propaganda numbers from a sheer lack of knowledge while having meticulous & exact numbers for Russian forces.
all-in-all Ukraine lacks any real ability to continue for much longer, while Russia doesn't seem to have any end in sight. It doesn't provide estimates for how much longer the war will last (as far as I can see) but there's clearly no long-term planning on the side of NATO. What may have started as an effort by NATO to weaken Russia has become an Uno reverse card, instead draining their stockpiles for a government that gives nothing of note in return.
in my very unprofessional opinion, based on what this report says, perhaps the war will end sometime either in the summer or the fall. I can't see a reality where Ukraine's able to keep up after this spring.