Very common on the tire surface that’s pulled down onto the jack stem and lug wrench.
Yours is one of the worst I’ve seen, but that’s how it was designed.
I’d make sure you have plenty of air in that spare to help prevent those impressions.
A Red Line spare that I took out of a trunk 40+ years ago is still showing impressions on opposite sides of the tire from the jack stem.
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1965 GTO Unrestored Survivor 389 / 335 4 BBL.
1966 GTO Unrestored Survivor 389 / 360 Tri-Power
Early (63-66) Schwinn Stingrays, all Unrestored Survivors
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