I have seen so many times that systemd is insecure, bloated, etc. So i wonder ¿does it worth to switch to another init system?
Even you asking this question means you should not. Systemd is perfectly fine for most people and the people that dislike it have their very specific reasons. Just use what your distro gives you, you shouldn’t have to care about these things.
Just use what your distro gives you, you shouldn’t have to care about these things.
To expand on this: OP, if you want to try a different init, you’re most likely better off switching the whole distro to one using that init. Unless of course your current distro explicitly supports many different init systems (like Gentoo). Don’t try to replace it by hand in a distro that expects to run on systemd, it’s a recipe for disaster.