Not sure if original post got all his questions answered ....
WE HAVE the 2021 Encore GX AWD Essence Model. Follow the manual, make sure vehicle is in AWD mode, confirm operation with dealer.
We have now towed it several times, including to Florida & back from Quebec. All is well. It has all the sensor & safety features; the proper baseplate does not interfere with anything. It was installed by a reputable hitch dealer.
I recall that back last year the baseplate for the Sport Touring model (that car had a red trim in front grille) may not be suitable; today I don't know. We don't have the sport model.
We find the Essence model excellent, peppy with the turbo, roomy with rear seats down, for 2 golf bags, lawn chairs electric walk golf cart, etc. This year we had a 2" rear hitch installed & plan to take our 2 bikes to Florida.
The only nuisance is the required disconnect of negative battery terminal ... tight space sine we also have electronic rustproofing attachement at battery. I simply unscrew the negative & place a plastic battery terminal cap over the negative. For the Brake Buddy Safety switch brake cable release we have a portable battery booster with separate connection in rear sear leg space (so GX battery remains disconnected). Investigated using a battery disconnect instead of manuly disconnecting / connecting before / after tow but decided it wasn't that inconvenient to manually disconnect battery. Just make sure you do all the operations, attach tow bar, install Brake Buddy claw to vehicle pedal, AWD tow mode, etc. that require vehicle battery. Remember that power door locks will not work with battery disconnected, but Buick FOB has a key & then one can open driver side to reach rear door lever as well, or to open Buick hood. It will take a learning curve but so does everything.
So far very happy with Buick 2021 Encore GX Essence.
Happy travels.