If they made that show, the only way I'd not remember it would be if the ending they went with were SO terrible it made all the fans resent the show, so that no one talked about it anymore.
This was a fun meme in 2019, but it's proven to be completely untrue, given that HotD has been very successful. Even if the show had had a perfect ending, the very fact that it
had ended would have caused people to "stop talking about it" to about the same degree.
We've seen this with other shows that did have competent endings - Breaking Bad for example. Was discussed constantly whilst it was on-air, and basically vanished from discussion when it finished. It still gets mentioned/meme'd, but to a lesser degree than GoT does, even, amusingly. Or just look at Succession - people talked about it constantly when it was on-air and between seasons and now? I haven't even seen a Succession meme for weeks, let alone heard someone talk about the show.
The reality is, in the madness of certain people getting absolutely enraged over GoT's shoddy ending, they deluded themselves into thinking people talking about a show vastly less after it finished was some kind of aberration caused by the ending, rather than what happens to almost all shows, even good ones.
The only real counter-example I can think of is The Sopranos, and even that saw discussion of it fall off a cliff after it finished, and it kept getting mentioned because it basically created the entire era of "Prestige TV".