Hello. Just a quick update. After upgrading the kernel to 5.6.0-1-amd64 (5.6.7-1) I can confirm the problem is still present:
May 5 23:22:39 wpa_supplicant[537]: wlx8c882bxxxxxx: CTRL-EVENT-STARTED-CHANNEL-SWITCH freq=5520 ht_enabled=1 ch_offset=-1 ch_width=80 MHz cf1=5530 cf2=0 May 5 23:22:40 wpa_supplicant[537]: wlx8c882bxxxxxx: CTRL-EVENT-CHANNEL-SWITCH freq=5520 ht_enabled=1 ch_offset=-1 ch_width=80 MHz cf1=5530 cf2=0 May 5 23:22:40 kernel: [46021.832983] wlx8c882bxxxxxx: AP a0:64:8f:xx:xx:xx tries to chanswitch to same channel, ignore May 5 23:22:40 kernel: [46021.832989] wlx8c882bxxxxxx: AP VHT information is invalid, disable VHT May 5 23:22:40 kernel: [46021.832994] wlx8c882bxxxxxx: AP a0:64:8f:xx:xx:xx changed bandwidth, new config is 5520 MHz, width 2 (5530/0 MHz) May 5 23:22:40 kernel: [46021.832996] wlx8c882bxxxxxx: AP a0:64:8f:xx:xx:xx changed bandwidth in a way we can't support - disconnect May 5 23:22:40 kernel: [46021.832997] wlx8c882bxxxxxx: failed to follow AP a0:64:8f:xx:xx:xx bandwidth change, disconnect May 5 23:22:40 wpa_supplicant[537]: wlx8c882bxxxxxx: CTRL-EVENT-DISCONNECTED bssid=a0:64:8f:xx:xx:xx reason=3 locally_generated=1 Greetings