a MTF on Puy Mary ?
legruppetto.fr
a Meribel MTF seems highly likely as well, as per the latest info on Velowire
Looks like a route for Alaphilippe, so far.
Parcours - Tour de France 2020 : Profils p.149 - Page 73 - Le laboratoire à parcours - Le Gruppetto - Forum de Cyclisme
Parcours - Tour de France 2020 : Profils p.149 -

a Meribel MTF seems highly likely as well, as per the latest info on Velowire
Looks like a route for Alaphilippe, so far.