Nope I think Russias had a lot of losses mate, the bulk of which have been suffered by the DPR and Wagner forces.
But I think Urkraines have been many times higher due to the nature of how it's been fought by both sides.
I'll tag in
@PhilM as my knowledge is purely from being a military history buff so genuinely interested to get the take if someone with actual military experience.
Phil as I've seen it, there's been up to now 4/5 stages of the war.
1. Fast Russian advance, heavily sold feint towards Kiev at the expense of quite heavy losses, especially equipment and vehicles in order to isolate the Donbass for phase 2.
2. The pinning - sometimes encirclement of the Ukrainian forces in key objectives - and the deployment of a grinding down offense on them.
3. The artillery war phase proper, little movement compared to 1&2 but effectively an artillery meat grinder phase for 3 months. Phase 2&3 saw the Ukranians almost employing a not one inch backwards strategy
4. Ukraine counter offensive very much in the new NATO style, much like phase 1 they sold a feint the Russians bought in Kerson by committing a lot to it - but not the better quality stuff, breakthroughs in the North and Russians initially routing then gaining some order to retreats but without any large encirckement happening.
5. Ukraine advancing taking ground Russians holding for a period then pulling back to avoid any encirclement, seemingly without the chaos that Russia seemed they had happening in phase 4.
6. Phase 6 - where we are at now, ukranians probing right across the line Russians holding, artillery seemingly back supporting and air/drones being utilised. Ukraine seemingly trying to build a large enough force in one area to make another major breakthrough, Russians trying to disrupt any force gathering.
Unless I'm missing something significant here then on the nature if how it's been fought, I don't see how on earth Ukraine hasn't suffered extremely high casualties, and I mean in an order of magnitude higher than what Russia 'so far' has