Zen3 refresh March to June
Zen4 likely end November/early December as every other year they done main release.
What's your point?
AMD have yet to launch the Zen3 refresh, or Zen4. It's possible they could launch even closer together than RKL and ADL did.
This is especially true are AMD are not in control of their supply chain - they're completely dependent on what scraps of wafers TSMC decide to give them. It's possible both will be delayed beyond AMD's estimates.
Meanwhile, ADL continues to sell well, gain market share, and Intel work on Raptor Lake launch on their own process, with capacity known and expected etc.