Orbi Query - Will an extra third “bridge” satellite help with daisy chain and overall wifi speed imp

Thanks, it's not the router that's losing connection, its the satellite to the router. Also in the living room I'm getting far greater throughput via Wifi than in the bedrooms. I tried it without the Daisy Chain setting and the satellites lock in better but the devices keep only connecting to the router at 2.4Ghz and not 5Ghz. So the daisy chain works better overall. Wondered if I should have a bridge router as a friend is coming from the USA. Note my home is not too big but I've tried every option for Wifi and the Orbi seems the best. Was thinking of swapping this for the Amplifi HD or the EERO 2nd Gen and adding a heap of mesh points but then I keep reading that Orbi is simply the best out there! So may just stick with it. I'm baffled how in the latest app update they don't allow us to force a device to connect to a particular satellite - that would have been a great feature and the QoS still doesn't work properly on the desktop login section in the ADVANCED settings., I just see a SPEEDTEST by OOKLA!