It’s unthinkable that it’s 2023 and we still don’t have any decent batch GUI photo optimization tool… The best tool I have come crossed to date is squoosh.app

Developed by google FOSS compression web app, with detracted CLI tool for batch usage.

Fortunately as it goes with open source spirit if the developer decided to do something stupid beyond believes the code is there for you to do whatever you want, and thanks to this we get some forks retrieving the old CLI functionality the updated version. Previous version still worked tho, but it lacked of features and had some Node.js dependencies issue.

https://github.com/frostoven/Squoosh-with-CLI