Questions about Telus Boost access points

I see the following settings on the Easy Mesh page and I'm wondering what they do. These are all enabled at the moment.

Role: Auto Legacy Steering: Enabled
Disabling legacy steering means that only devices supporting IEEE 802.11k and 802.11v are steered by your TELUS Boost Wi-Fi system to the best connection.

Band Steering: Enabled
Disabling band steering means that your devices will not be steered by your TELUS Boost Wi-Fi system to the best band (2.4GHz or 5GHz).

AP Steering: Enabled
Disabling AP steering means that your devices will not be steered by your TELUS Boost Wi-Fi system to the best AP.

Do the Boost WiFi 6, Boost Mini 6E, and Boost 7 all have the same features in the admin page? Is there any way to change the transmission power of the antennas?

How come under connected devices, none of my TVs, which are connected via WiFi, show the band they're connected to, while my phone, tablet, and laptop do?

Are the Smart Device and Guest Networks totally isolated from the main network? I want to connect my IoT devices to the Smart Device Network and guests connect to the Guest Network for security purposes.

Is there a reason why the password for the Smart Device Network is unchangeable? Will this be addressed in the future?

What is CCMP encryption under the Guest Network? Will WPA3 ever be enabled for this network?

Does the Boost 7 support 320MHz bandwidth? Is MLO supported?

How often are firmware updates released, and do they automatically update behind the scenes? Are the access points and NAH very secure?