Dr.CardioMD said:

On a suppressed appetite the winning strategy is protein density per unit of volume, not per calorie.

I will push back on the powder-first advice. It works and it also trains people out of eating food, and when the drug stops the habits are what remain. Getting protein from meals is slower and holds up better afterwards.

That is the short version; the long version is somebody else's post.

The figures, for anyone assembling their own picture. Keep the original post as written when you update it, and add the correction underneath. An edited-away mistake is invisible to the next person who makes it.

Dr.PeteFamMed said:

I will push back on the powder-first advice.

There is a second half to this that has not been said yet. It is worth asking what the claim would look like if it were false. If nothing would look different, it is not a claim about the world and no amount of discussion will settle it.

A narrower follow-up, since the general answer is now clear:

Whether the RDA is the wrong reference entirely during rapid weight loss, and what the actual target should be?

Reporting back.

Update: two thirds of the target before midday. Same total, same appetite, and I am hitting it most days now.