I've been to the theater many times this year and I saw a trailer for Strange World exactly twice. Other than a poster in front of the theater, I didn't see any other marketing for the film online or in the real world.

Funny enough, after seeing Strange World on Disney plus I started getting advertisements on YouTube and other websites. It's only anecdotal evidence of course, but considering I was shown the trailers for Minions and Puss in Boots countless times and saw posters for those films on billboards and in outdoor shopping malls, the lack of marketing for Strange World in my area was a bit... strange...