DY: “I’m also not sure that the ?”? means “chumra” the way we use it (optional)”
I’m shocked at the thought that you suspected me of using the term “chumra” to mean optional!!! Any serious student of Halacha knows that this is certainly not the way the term is used in Poskim.
However, it certainly indicates a lesser severity or certainty of Issur, and lends the stricture of the Pri Chadash less weight against the Tiferes l’Moshe and other Meikilim.