Russia (or Putin, to be frank) chose to try restoring the empire. Ottoman Sultans were trying to do the same as well, and failing. Atatürk, saw this and decided to create a Turkish identity, which was far from the main identity of the Ottomans. Some minorities were also integrated into this identity, using the language or religion.
The Armenians however, being one of the oldest settlers in Anatolia, shared none of these. As well as the Kurds and the Greek. Many were displaced (and yes, it was a genocide, I'm not dancing around the word) and suffered a lot more than it's imaginable today.
So I understand why they are afraid of their neighbor, and therefore skeptical towards NATO.
Most of the Turkish (the minority I'm in, being the exception) don't want to accept any stain on their saviors history, so they deny any wrongdoing with passion. Their (well, our) whole identity is created through that process, you have to understand the sensitivity. Many like me are coming to terms with what actually happened, but it's hard. The religious barrier is also not making things easier for many others.
I really wish eventually Turkey will recognize what happened, and some signs of diplomacy will start to show. Until then, I totally understand the Armenian position.
I'm living in another country now, and my favorite restaurant has Armenian owners. We are good friends. They do support Ukraine in this war, but still show sympathy to the Russian ambitions. These things are hard to change and are ingrained in our brains when we are growing up, and we should be okay with it. This is how being respectful to other peoples opinions work.
Disclosure: I consider myself of Turkish origin, not that I don't have my identity crises every now and then.