8 mos old puppy - Too old to train from scratch?

We're picking up a family dog, soon. We've found an 8 month old young'un who's captured all our hearts, but I'm worried he's too far past the puppy window to train without having some kind of late-dog-training issues. Because of this, I'm wondering if we move past our doggie crush and commit to a 2-month-old pup who we know is a clean slate, and we can raise fresh.

Can you begin training at 8 months and get the same results as starting when they're 2 months old?

Thanks for any advice. Hope you're all well.

Fred