Probably yes. I've been using these shortcuts with the left Alt (with the left, because in Poland we have AltGr, so the right Alt is used to get diacritics and other special characters) for over 30 years.
It's quite useful, and I find it hard to change my habits
I don't even mention the many occasions when I was able to do something without a mouse and younger people looked at it as if it was witchcraft.