Yes and no
Certaain esters don’t aromatise more than others, but the esters change how fast the compound releases or peaks in the system, so test no ester or test prop would obviously hit much faster (and cause quicker aromatization) due to a faster peak than say test Undecanoate which would release slower and have a more gradual peak curve.
Then there’s the case of ester weights. Testosterone propionate ester weights about 20.4%, so you’re getting about 79.6% of the testosterone dosage after factoring ester weight where testosterone Undecanoate ester weighs 39%, so you’re getting 61% of the testosterone dosage after accounting for ester.
So tldr: the shorter the ester the most testosterone you’re actually getting because the longer ester weigh more. And shorter esters peak harder and faster than longer esters
So the esters themselves don’t actually cause more or less aromatization but there’s indirect mechanics where you’re getting more or less testosterone which could yield a higher aromatization level with shorter esters
To your example —cyp vs E : the esters are extremely close in half life and weight where any aromatization difference is probably negligible
