Stable version suggestion for archer c6 v2

Can anyone suggest stable version for for archer c6 v2 with less known bug?

Version 23.05.5 ?

24.10.0 release notes say 5GHz wifi disappears.

Also be careful about what you flash - US version expects larger flash memory, check if label says any of named region versions and use proper factory image for first install.

https://openwrt.org/toh/tp-link/archer_c6_v2

Not getting full gigabit speed on this version

You need to cheat with firewall offloads to reach 1.3Gbps NAT (not full 1+1 gigabit either way)

EDIT: https://openwrt.org/docs/guide-user/perf_and_log/flow_offloading

Use this test:
https://www.waveform.com/tools/bufferbloat
Both offloads are identical in v23.05.5 due to missing hardware support, in v24 soft offload does not interfere with wifi roaming between 2.4 and 5GHz bands, hardware option ignores that and adds a bit of speed.

Do i need to follow the link? But I can't understand how to do that.
Using LuCI web UI: Network → Firewall and select “Software flow offloading” or “Hardware flow offloading”, then hit “Save & Apply”.
If it's like this i can do that