Armenia proved this because Azerbaijan was able to fly within their airspace, against their armoured columns with impunity. With no proper AD or air coverage. Both PA and IA operate and deploy a large variety of mobile SAM's designed primarily to protect against these threats. On top of this, both PA and IA have access to large varieties of LR sensors from AWACS to ground based stuff or even esm stuff, supported by respective air forces to exactly prevent what happened in Armenia from recurring here.
Ukraine is another story, Russians are actually incompetent, their organisational structure is fractured, there is no integration of anything, RuAF is sitting idly mostly, Russian AD controllers dont have access to proper IFF, the list goes on.
Not every lesson is applicable. Not sure when people will stop harping on about tanks being useless because drones exist. Drones and tanks serve very different purposes, i am sure we will see significant drone losses in future conflicts when adversaries go toe to toe with functioning air coverage lol