The bone bruise was around the trade deadline in 2022. He was out for a few weeks, then
returned early March to play out the rest of the season with Washington.
Over the course of his 8+ year career, Porzingis has been unavailable due to injury or illness for 38% of his team's potential games (including missing all of 2018-19 with ACL recovery). I think that's a well above average absence rate for NBA players as a whole. It's probably about par for 7-footers, so I don't think there's any sort of grand narrative about him that's necessary or valid. But that doesn't mean it's something we can ignore when setting our own expectations, either. If I were setting the over/under for his games played this regular season, it'd have to be about 52, which is "missing 38%, his career average". He's already ahead of schedule having played in 15 of 17, but missed games come in chunks, of course, and will increase in frequency / probability as a season gets closer to its end.