Obligatory comment every time one of these threads comes up that Synology, sure, the hardware is a bit dated but… as far as set and forget goes:

I’ve run multiple Synology NAS at home, business, etc. and you can literally forget that it’s not someone else’s cloud. It auto updates on Sundays, always comes online again, and you can go for years (in one case, nearly a decade) without even logging into the admin and it just hums along and works.