Hi, i am thinking of getting a deco but not sure if it's better to go with unifi or just get it myself.

For the one under unifi, is the item ours after 24 months?

Secondly, is there any issue with deco and smart tv? I saw some complaining in google but that was in 2019.

Thirdly, must the unifi router be disconnected for mesh to work? I'm still thinking if i need 2 or 3 deco.