Hi OP, the ergonomics in the C8 are the worst and seating/pedal offset is bad.
I have a 2021 S6 and 9 months later I am still struggling to get comfortable, it seems like everything they could get wrong they did. The footrest for your left leg feels at least 2" too far away compared to the gas pedal and as for the seats.
I have sports seats in the car and these are awful, what seats do you have?
Considering I drove a manual B7 S4 Avant for 120,000 miles I am aware of the pedal offset and seat issues but the C8 is horrendous.
I currently have 2 blocks of 3/4" ply screwed to the footrest and a wedge cushion on the seat trying to get comfortable, it is a truly terrible car but I like the mpg.
I would like to know how other owners get comfortable in this thing as I am struggling.