Not necessarily - altho I know archaeologists always drum up ‘rituals’ (did anyone have time to eat?) - this fresco may merely mean that the home owner was a Christian.
RT @Lindsay_Powell: Restored C4th wall-painting from Lullingstone Roman Villa in Britain. It shows the Chi-Rho monogram (the first letters of Christ's name in Greek) indicating the room was used for Christian rituals. In the @britishmuseum (PRB 1967.4-7.1). Photo my own. #FrescoFriday #archaeology

🐦🔗: https://n.respublicae.eu/Baroness_Nichol/status/1619254362060247041