I’m trying to find a better solution for my wife’s family than Apple’s FaceTime. It does okay with just two participants, but beyond two, it starts failing mise

I’m trying to find a better solution for my wife’s family than Apple’s FaceTime. It does okay with just two participants, but beyond two, it starts failing miserably. I know it’s not a network problem, because I’ve had Chime video conferences with fifteen or more participants, and that’s worked fine. My wife has done zoom meetings with large numbers of people, and her problem is that when she does that from her iPad, the video angle makes her look bad, and we haven’t gotten it to work at all on her laptop. So, I’m interested in finding a solution that is cross-platform (including mobile devices) and doesn’t require downloading an app. P2P would be a bonus, as would end-to-end encryption. But this is just for personal use, and I can make sure we are on VPN, so those two features would be a bonus. Not FaceTime. Not zoom. Not Google. Not Chime. I’ve looked at Jitsi Meet, but it doesn’t support iOS in the browser, although that is on the roadmap. Anything else?