At the moment the only real way to know how well a particular system will work is to buy (or borrow) the kit and try it.
Some decent educated guesses can be made based on specifications and materials.
As per the document shared by caffn8me Ofcom were consulting on reducing the DFS requirements (particularly indoor) and widening the available channels to include 6GHz but to avoid having manufacturers having to release country-specific equipment (such as in USA) UK tends to try to co-ordinate with the rest of Europe.
This will likely remain true (even now) as people will still want to be able to use the same phone on Wi-Fi when they travel.
The exact regulatory rules in effect are applied by the firmware in concert with a user-configurable country-code in the AP as that determines what channel(s) are available.
But manufacturing still needs to design and build radios, antennas and chipset that operate just as well in the new frequencies so agreeing a common min to max operating freq range over wide geographic areas still helps in terms of what models will be sold in what economic areas (similar to what happens with GSM / CDMA versions of the same smartphone now).
And at 80MHz having 12 distinct usable channels instead of a single non-DFS channel would make a difference once it filters through to end-user devices.
prlzx on Zen: FTTC (VDSL) at ~40Mbps / 10Mbps
with IP4/6 (no v6? - not true Internet)
Edited by prlzx (Tue 05-Jan-21 21:46:28)