Post content instead of excerpt and ACF field

I want to show the post content instead of just the post excerpt on the main blog page, because if I show the excerpt I can not add line spacing to my text.
???

Also, how do I show the ACF field I added on the main archive page? It’s not pulling it in.

That’s generally controlled by your theme, so you can check the docs. (Or query blocks also give you that option, I think.)

ACF fields can be added with shortcodes. Does that help? Check their docs.