I recommend going and trying out the bike. My 2020 Domane SL5 fits quite differently than my Sirrus 4.0 despite very similar frames. My Sirrus is a 58. My Domane is a 56. The Domane fits “large” and the seat post range is more limited than on a bike with a conventional post. The Trek site said I needed a 58, but I could barely reach the pedals. I don’t think you will find the answer to your question until you hop on one.

I would expect that the store could put a pair of shoes, etc. on you and sit you on the bike to see how it would work out.

Great bike - love mine! So much I splurged on a carbon wheel set for it Saturday (Bontrager Pro 37).

Also, highly recommend the Ion Flare RT lights. Really integrate well with the Blendr stuff.

Good luck!