I strongly disagree, I am a software engineer, have worked on the field for over a decade, while I understand that's not enough to be one of the extremely senior developers but nevertheless I'm a senior software engineer that can answer any and all questions posed from a beginner or even a mid leven engineer. The company I work for pairs developers when they first join so you have someone who's expected to be there to answer anything, this creates a positive climate and makes new joiners feel safe to come and ask questions, which in the long run makes them feel comfortable with doing the same.

When you send a message to someone on slack he can finish what he's doing then respond, on an office setting the question will cut your thought line and cause you to lose track of what you were doing. Back when I worked at the office there were days I couldn't get any work done because after 30min of investigation someone asked me something, then I had to redo the full backtrack of what I was doing only to be interrupted again for something stupid like shown a meme or be asked if I wanted to go out for lunch. The company I worked before my current one got so efficient during COVID that there wasn't any work left to do, the managers had planned a year worth of projects and we finished them in a few months and they had to rush to try to find things for us to do. However working from home makes micromanaging harder, so managers who want to micromanage make everyone's life harder (including their own), and then complain that the engineers are producing less.