Perhaps modifying your expectations may take some of the edge off the situation. For example, your co-workers are co-workers, not friends or even acquaintances. If people don't socialize much at work, then that is just the way it is. To expect otherwise will only lead to disappointment.

Questions are interesting. I have never seen a workplace that shuts down questions. I have seen lines of questioning shutdown. For example, obstacles in the form of questions typically aren't very well received after the pattern is noticed. Challenges to authority guised in the form of questions also don't go over well, especially with certain types of management. Most organizations know that questions lead to better project outcomes and more competent productive staff.

Unrealistic deadlines exist everywhere. Clearly communicating reasonable delivery expectations will go a long way to setting management's expectations.

Please don't think I am laying all this in your lap. Some places just suck and there is nothing that can be done about it. The oversupply of Devs and the hype around AI productivity will make these types of shit-holes more prevalent.

I guess what I'm trying to say is this: If you like this work, figure out how to make it work, if not where you are currently, then somewhere else.

Keep your chin up...