I guess people here assumed that I've been banned from a forum. I'm sure I haven't interacted with that forum at all nor even knew about it before until I started searching for problems with ipv6 and mtu.
this forum pointed out it was an issue from the isp's end: https://forum.netgate.com/topic/157817/problem-loading-web-pages-with-ipv6/15
I've confirmed that lowering my MTU to 1452 fixed the issue but I assumed that my ISP should've dialed in everything properly without messing up the mtu.
I tried mobile data with the same ISP (Etisalat) and this website seems to catch on as to what's exactly happening. I get the same result regardless of whether I'm on my home network or mobile data.
I'm not blurring my home IP address since people seem to get a false hope that I'm hiding something from someone here.
