My advice when folks are struggling with writing in the third-person omniscient is
to Lemony Snicket it up. Give your omniscient narrator strong opinions
about what’s going on. Don’t fall into the trap of assuming that the
third-person omniscient perspective must also use the objective voice;
those are two separate things, and many of the most popular and successful writers who’ve written in the third-person omniscient do not, in fact, use the objective voice.
“Willingness to admit the narrative has a voice” is, I think, a big part of what makes young adult literature so much more engaging than a lot of books marketed at adults, particularly adult men.
Honestly, this is one of my favourite things, to the point where I start trying to headcanon which character from the story would be the 3rd person omniscient narrator, based on the unconscious bias in the writing. There’s usually at least one character with a similar personality to the writer.
I like to headcanon all the Terry Pratchett Discworld books are loosely being told well after the fact from Death’s POV for example.