I see Alina's "grand slam" referenced here pretty often and I was not aware figure skating had a grand slam, so I googled it. Here is the Wikipedia page: https://en.wikipedia.org/wiki/Grand_Slam_(figure_skating)#Ladies'_singles
It appears as though OGM does not count for a Grand Slam. And Alina does not have one, though she does have a "Career Grand Slam" (as do many other ladies).
OGM counts for a "Golden Slam," but Alina does not have a Golden Slam. Only one skater in ANY discipline has one, and it's Yagudin. But Alina does have a Career Golden Slam. The only other lady with a career Golden Slam is Yuna Kim.
A Super Slam includes junior titles. Alina has a Super Slam, as does Yuna.
The "slam" measurement for greatness generally seems unfair to Asian/North American skaters because of the inclusion of 4CCs. 4CCs is less prestigious than Europeans and more difficult to peak at due to it being so close to Worlds. In addition, for many years, some countries did not send their top skaters to 4CCs. For example, Michelle Kwan never competed at 4CCs.
I also see many say that Alina is a GOAT because she the youngest to have completed a "slam" (whichever kind - but it's not a "Grand Slam"). However, being the youngest to accomplish something doesn't make you the greatest. Age is arbitrary when discussing "greatness." Though perhaps the OLDEST person to complete a slam would be worthy of honor, considering how much more difficult skating becomes as you age.
Well, there can be only pointed out that it is "unofficial title sometimes used by figure skating analysts". And analysts can set it as they like I may not be "figure skating analyst", but I value winning GPF, OGM, WC and EC in two years of senior skating (accompanied by winning JWC and JGPF a season earlier, and also junior and senior national titles) - which means literally everything that matters - higher than as "skating analysts" defined "grand slam"
And that about 4CC? Lilbet, Rika, Kaori, Bradie, Eunsoo Lim etc. had perfect chance. Closer to WC? There was still more than a month after 4CC to WC (more than there was in 2018 between 4CC/Euros to Olympics). It is like saying that you are disadvantaged when you have to peak on two GP events to get to the finals.