Using 5GHz is a real pain here in Switzerland. Only 4 non DFS channels are available 36, 40, 44 and 48 (output power is also highly restricted in these 4 channels). Rest 14 channels are DFS. Channel planning is a nightmare; never know when a AP on DFS channel will hop back to a non DFS channel and start sharing bandwidth there, and will also lower its output power. Moreover adding to the confusion is that all Outdoor APs are restricted to using DFS channels only!!
In my home network here in Spain I just turned off all my ISP router wireless and got two 2.4 APs with OpenWRT by ethernet in different parts of the flat. There's a lot of noise but honestly I'm fine with ~30mbps, and I don't get all the weird stuff that comes with 5ghz.
Everything that really needs speed is connected by ethernet anyway.
Agreed, even in a fairly low density street 2.4GHz is totally useless as it is so noisy, especially outdoors. 5GHz actually has better range due to the noise.
Hopefully Wifi6E equipment will come down further in price.
You should see if the SRD (25mW) channels are allowed in Switzerland. They are not in BAKOM's WLAN factsheet, but I think they are supposed to gradually align with ETSI/ECC, so I expect they will eventually become available.
They are low power, but unused, so they perform well.
