I would point out that 'Focus on other time periods' does not equal 'Retconning the sequels out of existence'.
You could have Star Wars focus on more post-Original territory (like Mando), midquel territory (like Solo, Obi-Wan, or Andor), pre-prequel territory (like KOTOR, the High Republic, or Acolyte), or post-sequel territory (the planned? still planned? Rey sequels) with a new* batch of characters without reusing the sequel characters / storylines.
*Obviously, the emphasis is on new characters - no one wants more Acolyte.