Band selection mechanism - don't switch to 2.4Ghz if device support 5Ghz or upper Band
this one was so serious problem and till date it was not solved yet, i noticed while gaming or streaming even i go outside of my home network devices was not able to communicate (packet losses over 80%) but signal stregth is -68 db ping responses are 300ms+.
the issue is device switch to 2.4Ghz band for no reason and 2.4Ghz never work in urban area (high background noise and overlapping channel), but when i disable 2.4Ghz band this issue gone forever even 5Ghz has more range and stability (-95 db response 5ms).
you can suggest for connection preference but human are not machine they can't assign every device static setting. or i can only enable 5Ghz band by sacrificing legacy device support.
tp-link can develop simple algorithm to solve this issue (no AI healing - they are just if else condition). if device connected for first time in network (after reboot) try to connect to connect to every possible band supported by deco (device supported 2.4ghz, 5ghz, 6ghz) now saved this setting to ram (this way it don't tear eeprom or nand) now force deco to only connect this client to only highest band available.
by applying this algorithm i can use my legacy devices while my gaming laptop and smartphone never fallback to legacy band which i facing from last 9+ years (previously using tp-link router with same ssid and password for both band)