Honestly, I would not be surprised if in a few months it comes out with experts saying the current variant has a shorter time span for symptoms after exposure.
For us, it was roughly 2 days (and I think my teen who had minor symptoms may have even been just only 36 hours - we didn't realize she even had covid until I came down with it a day later). Our FL relatives who we spent time with 2 days before DD got symptoms never got it.
When my son and his g/f attended a wedding in May, they also developed symptoms within 2 days after the event. We spent an entire day with them 2 days before the wedding and we didn't get it. However, his g/f family was with them at wedding and they did get Covid.