Yeah, that is a good solution too. I have tried to avoid Google Photos for some of the same reasons I avoid FB, but I think it is still a huge improvement over FB. Although Gphotos is not too hard to set up, I was compelled when my 82 year old aunt could figure out the stock Photos app herself. No Google account required.
Also, you can view iCloud photo albums over the web too (although I don't think you can comment if you're not loggid in / on a iP([ao]d|hone)!
Back in the pre-FB era, I used the PHP Gallery app. It was so hot at the time--I was the only one with a photo sharing site at my own domain.
For a sort of intermediate approach, there is also Nextcloud Gallery for folks who want their stuff hosted on their terms but with (modern-ish) access and sharing controls. There's also iOS and Android Apps