anyone with TIME having access issue to twitter today?

for this stupid router WA8021V5 given to me, i thought as an upgrade but fewer ports as well. i am wondering, how do i configure google dns in this router? i cant find them btw

i recently got this pair
Huawei Optixstar HG8145X6-10

i am using one of them as router and another as repeater/mesh whatever wanna call it

but i plan to buy another router and i am not sure how to setup both of those huawei as repeater/mesh and only use their wifi in the house

a question, with current setup for time broadband, a modem and another router, i plan to replace my router into something where i can have pfsense with. previously, i am setting all the TIME username etc in the router to connect to internet. With the replacement of pfsense for the router, can i still or need to do this on pfsense side to connect to the net?