Unusually easy interview

I just had an on-site interview for a senior role at a fairly large company that is known to pay really well (almost faang level) and with a team that's growing fast. I had 4 rounds + lunch. The interviews were going to be easy according to a lot of posts on blind, but this was too easy. Only 1 round had me write code on a whiteboard, and no system design questions. Now I was referred by a senior leader within the company, which I think might have been a reason for this. The initial telephone screen was an LC medium. I don't know what to make of this. I haven't got the result yet. Any ideas? TC: 150k YoE: 3