Comment by general1726

Indirectly you van have a look on covert cabal YT channel, who is analyzing satellite images of Russian storages. They are essentially empty or near empty.

Directly you can have a look on subs like r/combatfootage and you can tell what year is footage coming from just by used vehicles - The more unusual the vehicle leading the assault looks like, the more recent the footage is. You will gradually get from normal military columns to BMPs and MT-LBs (Tractor for pulling artillery) to Dessert Crosses (golf carts), trucks, old tanks with huge amount of slat armor to soak the FPVs (Assault Barns) followed by BMPs dropping current suicide squad to quickly drive away before it will get hit by artillery or FPV to having suicide squads on bikes today.

Rarity of Russian armored assault today confirm what author is saying. Russians can still make more modern tanks, but is is low number of dozens a year. Not really useful when Russians were able to lose up to a hundred a month when tanks and IFVs were in abundance.