One good example of that is the scene in Shazam where they leave the strip club and the fat kid says "eh, not really my thing" implying he's gay and it feels so awkwardly shoehorned in, it was a good movie otherwise but good grief was that awkward.
It isn't an entirely new phenomena either, one thing it reminds me of is in 1980s movies like Summer Rental and Short Circuit there's scenes of characters angrily switching or turning off radio stations with Preachers on them, as well as tons of "crooked televangelist" characters in movies and TV back then.
Anytime something is in a movie or TV show solely to “stick it” to someone it feels awkward.
Because writers feel compelled to give minority representation, but they can't commit to it fully. A lot of the mentioned examples here are purely through dialogue. Meaning, in East Asia, Eastern Europe, the Middle East (most of the world actually) can freely dub over to erase that representation if the marketing department thinks these already janky lines would do meaningful damage to the product's box office performance.
There are stories out there where, for example, a child is adopted, or from a minority ethnic group, or a character is an amputee with prosthetics and everything. In plenty of stories, these aspects of the characters are never touched on in the plot, they're there for representation's sake. And that's fine, plenty of children's TV shows do this. The intention is generally to remind the audience that people are different... but you aren't bigoted for questioning why those decisions were made if they're not essential to the story itself. It's the author's story, tear away, but altogether it can make for some weird results on a macro level. We're seeing it now with gay representation, but since the 80s black people in America have been far and away over-represented in media, simply because most shows and commercials want to include that 12%, so a disturbing number of shows and movies have at least 1 black secondary character that isn't really driving the thrust of the story. The Black Best Friend is a trope, "My girlfriend's daughter" probably won't because its far too awkward.
I think a lot of this wouldn't be a problem if not for the fact that there's a very loud contingent on the internet that will fight and heap praise on anyone that throws them these fig leafs. It makes the wider society acutely aware of what's going on, and loathe the politicisation of media that's supposed to be escapism. It feels unnecessary because you've got one group that thinks going YAAAAAASSSS, believing it will help normalise gay parents, marriage, etc, (sort of unintentionally creating a schism by drawing attention to it) while a much larger segment of the population winds up quesey about such things because all the noise around it makes the inclusion look political and vestigial to the story.