The decisions don't explicitly mention a version, they say these particular sites:
"...shall cease to use the version of the Google Analytics tool used on 14 August 2020".
They don't say if that's UA or GA4. The original complaints from NOYB refer to UA, but the issues cited in this decision would apply to GA4 as well.
So when the DPA says "Companies must stop using Google Analytics", there's no reason to think they only mean the version that was already shut off when they published that post.
I guess they can't ban a product for all eternity. In the decision [1] they are a bit more specific:
"This shall be done in particular by ceasing to use that version of the tool
Google Analytics as used on August 14, 2020, if not sufficient
protective measures have been taken."
The decisions don't explicitly mention a version, they say these particular sites: "...shall cease to use the version of the Google Analytics tool used on 14 August 2020". They don't say if that's UA or GA4. The original complaints from NOYB refer to UA, but the issues cited in this decision would apply to GA4 as well.
So when the DPA says "Companies must stop using Google Analytics", there's no reason to think they only mean the version that was already shut off when they published that post.