Did NATO mobilize any forces during all these months? No.
Did US mobilize any forces? No.
Did anybody promise to get involved? No.
Is anybody starting any mobilization now? No.
Is Ukraine part of NATO alliance? No.
So why do you think they are going to get involved now?
So yea, this is tiny in comparison to other conflicts. For example Yemen conflict is so much bigger than this and it affects world economy a lot more since 70% of world's energy is passing right under this conflict and for example another attack on oil facilities like in 2019 would send fuel prices through the roof.