They’re pulling older and older pieces of equipment out of storage, fixing it up, and sending it out.
They’ve given up trying to bombard Ukraine with naval assets, and surrendered the offshore oil platforms they were using as observation platforms.
They’re flying fewer and fewer sorties, the ones they do fly typically lob missiles from beyond the border, and they’re seeing mechanical failures because the few aircraft they do have are not being properly maintained.
The lack of equipment is definitely hurting them, make no mistake about that.
Unfortunately, they have no shortage of young men to send to their deaths.