If you have watched recent Marvel movies, especially the Ant-man series, you probably would know that these movies' target audiences are children and teens.
Exploring the multiverse and quantum realm is great, but showing poor action sequences and a weak villain doesn't help lift the movie.
The real heroes are the ants who defeat the great villain "Kang the Conqueror" and the supposed heroes stand there and watch - such excellent writing
And as usual in Marvel movies, the bad guy gets a change of heart, and everyone feels bad for him when he dies.
Planning to watch this movie with your kids? Go ahead.
Otherwise, it is better to skip this movie and series. (I had to fast-forward it, as I could not watch it)