This question might have been asked in past and concluded that there is no hardware support for TP-Link TD-W8968 V4.
Compatible hardware list says Openwrt is compatible with TD-W8968 V3.
However, there are couple of post where it is said that V3 firmware is also compatible with V4.
However, if so, it is not updated in compatible device list.
I am new to openwrt and not software person. Hence, difficult for me to go to very detail of V3 and V4 and various post to conclude if it works.
Does anyone ( @_Menouar, @Rohitdk1998) who tried it can confirm if V3 firmware works also on V4 without any issue?
it only has partial wireless support, best you will get is 54mb/s see: https://openwrt.org/unsupported/wifi_2.4ghz_partly
that's due to the chipset, so the TP-Link firmware will give better performance due to proprietary drivers
Yes, indeed V3 firmware works on V4 just fine (for my use case). I have been using and updating it for 4 years now.
Also, if you want to revert back to the original firmware here is my guide on it: Need your help to revert to TP-Link TD-W8968 v4 firmware