I doubt it, though Frieren has had more staying power on the list than past shows that have briefly topped the list. I suspect it might stay on top while the show is airing, but over time I think the MAL userbase will revert to the mean of FMAB #1. I might personally think Frieren is a better show, but when you are talking about shows with thousands and thousands of scores factored in, there is a lot of resistance to change given enough time.
Have you read the manga for Hokkaido Gals? I am debating trying to find time to watch it or if I should just dive into the manga instead. It is usually a lot easier for me to find time to fit in a couple chapters of a manga to my schedule compared to a 30 minute block of time for a show.