Sorry if this is a detail
I haven’t read the whole thread and many have missed any other Greeks have on here explaining that memorials are big in the Greek Orthodox Church.
At 3, 9 & 40 days, then 3, 6 & 9 months and at a year. Then every year after that.
We still have memorials for my grandparents and one died in 1974. I go to all dh’s in-laws family’s memorials as well. My in-laws and their in-laws come to my dads and grandparents ones.
January and February I have one most Sunday’s.