Locked camera and the importance of spacing

Im a emerald/dia Player that started playing again. I think my fundamentals are better than my elo but I lack consistency, matchup knowledge and my mechanics are only Okayish. What I realized by watching viper, how important spacing is. He also locks his camera sometimes which helps a lot with spacing. However, I find I kinda weird and also exhausting that the camera is always moving with every step I make. How do you guys do it? Do youso switch between locked camera and free camera? Do you have tips for spacing or even settings for the camera.