Are the winter tires still usable?

Hello! I wanted to mount the winter tires on the car today, I noticed that a tire has a indentation. Looks like a pressure point. I’m not sure if the tire is to be replaced or not. Basically I’m rather careful with the tires and don’t enter a riskio, but I’m not sure with the tires. They’re no longer the latest ones from 2014 and in part the profile is strangely worn out. However, the profile depth should still be right and the rubber mixture feels What do you think? Would be good if I could have an assessment of you pros 🙂 (I know of course that nobody is responsible for his advice and no one knows when a tire will burst or not). I have attached the photos. Let me know if you need more. Thank you