The only series 5000 cpu's that are still using Zen2 architecture are apparently the 5300U, 5500U and 5700U, which all use socket FP6 (mobile/embedded).
So I'm guessing it shouldn't affect any of the more recent and very popular Zen3 cpus like the 5600, 5700 etc. I personally own a 5600, which are a great bang for buck.
Lucienne (5700U/5500U/5300U) are the only Zen2s in the 5000 series at present (afaik), but AMD continues to re-use the Zen2 architecture in the 7000 series (7520U, etc), as well as many semicustom products like Steam Deck.
It's in rather a sweet-spot as far as performance-power-area, so this isn't entirely a bad thing. Zen3's main innovation was unifying the CCXs/caches, but if you only have a 4C, or you want to be able to power-gate a CCX (and its attendant IF links/caches) down entirely, Zen2 does that better, and it's slightly smaller. We'll be seeing Zen2 products for years to come, most likely.
So I'm guessing it shouldn't affect any of the more recent and very popular Zen3 cpus like the 5600, 5700 etc. I personally own a 5600, which are a great bang for buck.