Move photos from Google Photo to Onedrive?

My wife’s phone wasn’t backing up to Onedrive and she wants me to move all of her photos from Google Photo over to it with the changes coming to storage limits. I believe I saw something posted at one point in time on how best to go about doing it but can’t find it now. I found something called MultCloud that looked good but thought I’d ask her first on what other people have done or if they have used MultCloud before. Thanks