Happy Eid.
[1] https://www-lepoint-fr.translate.goog/monde/algerie-2-ans-de...
Intermittent fasting can be fasting Monday to Friday and only eating in the weekends like how I think one HN-er described his 5/2 diet.
It can be OMAD (one meal a day) or something else. The main thing is you fast and stop fasting repeatedly.
None-intermittent fasting is when you just skip food for a day like I did last week or for a few days like I did as a teenager.
I also think some others, among them Christians, fast completely.
Personally I am Christian but when I fast, the vast majority of the times it has been because I was bored or needed to focus, and I didn't punish myself by breaking fast once a day but just went without food a day or two or three until I became bored of that too or family demanded I ate.