I don't mean any offence, but you haven't really then have you - that's quite a different situation, your average tenure is less than 1.5y, more than tenfold less than OP's.
I imagine (haven't done it myself) it's psychologically quite different to leave somewhere you're so established, and start somewhere new when it's so long since you've done that. You're used to it. I'm not saying it doesn't have challenges, but I think they're at least different, and anyway you're used to embracing them.