I have a withings and I really like it. Their privacy policy made me feel better about allowing my info on the cloud. You can run it offline (it sends weight via Bluetooth to the app but won’t show 7-day trend an scale screen without wifi). I don’t mind that, so I leave it disconnected. I don’t use a home assistant though so I can’t speak to that part.
I have the withings watch also, so I use the app as my catch all health tracker which works well. it’s nice to have everything together. Can’t speak to any others but I’d recommend withings.
I love these games. I replay them both every few years and they are still fun. I’m still pissed about what happened to Arcane Studios and what could have been had the big corpos not done their usual bs.