Evidence that Macros Do NOT Cause GCD Delay or Lost Casts

[Mikoko_Miko]

I found an interesting thread in GameFAQs.
Is Macroing oGCDs as a Healer a good idea?
It was posted in 2021. There are some opinions that evaluates combat macros in certain conditions. There is even an opinion that some macros lead to DPS gain. It is close to my opinion, but it was unexpected for me to find such an opinion in English. There is also an example of Sprint macro with repeating line method.