I tested my website on PSI without the option to show the date on the archive and posts and got 0 CLS but when I turned it on it returnED 0.6 CLS. Please how do I solve this with the date on posts and archive enabled?
The issue is related to the font loading and its using the Display = Swap property.
See here:
On initial load the system stack font is loaded, because of the display swap, then when the fonts ( i circle in green ) are loaded you can see the font update causing the reflow.
I would recommend NOT using the display swap property.