I've seen this a lot. People who've been on the team a while are happy at getting work done without interruptions. Many of the interruptions are actually important things like helping to onboard new team members.

I'm really bad at asking for help but if I had my time again I'd make sure your talks with managers are regular. If you are supposed to be working on a project make sure you ask which tests cover that area. You should ask to see the desktop of someone in your team how they work, how they navigate around the system and how they would add the functionality you're trying to do.