Flex is just a turn of phrase mate, it’s not in any way derogatory. I am grown up enough not to call random people I’ve never met ‘manny’ as if they’re my best mate though if that helps.
Maybe you’re right and Moyes will play like that, I’m not claiming to be the oracle. It’s not how most people would expect a Moyes team to set up very often I don’t think, and the fact he didn’t even seem to particularly trust Alcaraz in a more advanced central position makes me doubt he’ll want him playing further back every week, but it doesn’t really matter either way does it? It’s just opinions on a football forum at the end of the day.