Well, it’s been months since we’ve seen them looking genuinely friendly together, not just existing in the same space. But we’ve also seen them very rarely this year.
Between his graduation attire, “no no no,” and the way he almost completely ignored her in that Paris video, it seems to me that Louis is doing all he can to make it clear that they are not actually in a relationship. So if they are good friends, I wouldn’t expect it to be obvious from the few times we actually see them in public.
I doubt Jay would have made Eleanor a bridesmaid if she and Louis don’t at least get along. But who knows?