I think the question of why Conte has preferred a 3-4-3 over a 3-5-2/3-4-1-2 is rather interesting.
3-4-1-2 would seem to give a more natural immediate role to Ndombele, GLC or Alli. Son and Kane as strikers, looks good. Seems like a strong line-up.
Problems for me are:
-Lack of trustworthy options for the #10 role. GLC injured, clear questions over Ndombele, Alli in poor form for a long time.
-No real options up front. Moura? Bergwijn? Gil? One of the #10 options as strikers? Can't see it. Two games a week, need for a consistent system to work that in, need for bench options.
Starting 11 might look stronger in a 3-4-1-2, but there are no real options and little trust in the #10. No real natural role for Moura or Bergwijn.
Don't expect a change now. Think Conte will try to stick with this to work a system into the players without chopping and changing. I think that's a good choice.
The path to more creativity remains Ndombele or GLC being trusted as one of the two central midfielders. It's not a great position to be in, but it's the position an unbalanced squad has left us in.
Don't think Hojbjerg will be dropped, certainly not for Winks at this point. I see your point, but Hojbjerg has performed at a much higher level over a long time.