> systemd is just a service manager it's you who decide to use other systemd parts.

cough

> To this day I have not found a single modern argument against systemd that is a technical one...

Good for you. [0] The project is great until, very, very suddenly it is not. May you continue to have many happy and trouble-free decades with it.

But when you do hit a bug whose cause is dreadfully complex [1], or get some useful, documented behavior you depend on altered so that it's unusable for you for no better reason than "it was inconvenient to keep permitting people to do that", you'll understand why some folks strongly dislike the project.

[0] Genuinely!

[1] ...so much so that the maintainers refuse to work on it...