List Column Formatting - Set WHOLE Attributes Object If Column Has Content

OMG, thank you both for your responses ... sorry, I literally never saw the notifications for these. 😩

( also ... this forum site software is SOOOOOO much better than the Power Platform community one. )

I even have a feeling that this is related to the thing that I've just started working on again ... because that post date is IDENTICAL to the last modified time on the flow behind it all! 😅

Don't worry, I never expect or feel entitled to help / responses in these places ... I do not take you for granted, either of you. 😘

Anyway ... if I can work out why I asked this question, I might well come back to it ... as I'd like to do something similar with calculated columns in the list form. ( that's form proper, not the list views that masquerade as 'new' forms in lists )