Unit upgrade question

Let’s say I build an airpad as Anders, then I upgrade the air units damage/health. Do these upgrades apply to Anders sentinals or just the units in the airpad (hornets, vultures).

Same question for similar scenarios with other leaders.

I assume they apply to the sentinels as well. Marines get buffed with infantry upgrades even though, they are not trained from the barracks directly. Correct me if I am wrong.

pretty sure it does. just like it helps the condor and heal rate on nightingales etc. im like 82% sure

yes it applies to the sentinels but global upgrades do not apply to super units