How do you deal with useless online meetings?

According to my experience, every 2nd meetup often does not result in decisions being made or action items clear. And this very quickly leads to the burnout of the one responsible for the productivity of these meetings. How do you fight this issue (especially last year)? Can you recommend any useful tools that have helped you? We are trying to deal with this problem by developing our product (https://www.producthunt.com/post...), but we are actively looking for new useful ideas to try.