linux – mysqld_pre_systemd fails when starting MySQL on Fedora

I installed MySQL using dnf (I’m on fedora) and from the officials rpm on the website. Both had the same problem : I have an error when I do systemctl start mysqld.service.
So I checked systemctl status mysqld.service and got this :

‚óŹ mysqld.service - MySQL Server
     Loaded: loaded (/usr/lib/systemd/system/mysqld.service; enabled; vendor preset: disabled)
     Active: failed (Result: exit-code) since Wed 2021-04-07 17:07:54 CEST; 6s ago
       Docs: man:mysqld(8)
             http://dev.mysql.com/doc/refman/en/using-systemd.html
    Process: 39884 ExecStartPre=/usr/bin/mysqld_pre_systemd (code=exited, status=0/SUCCESS)
    Process: 39913 ExecStart=/usr/sbin/mysqld $MYSQLD_OPTS (code=exited, status=1/FAILURE)
   Main PID: 39913 (code=exited, status=1/FAILURE)
     Status: "Data Dictionary upgrade from MySQL 5.7 in progress"
        CPU: 734ms

avril 07 17:07:53 laptop-de-mathis systemd(1): Starting MySQL Server...
avril 07 17:07:53 laptop-de-mathis mysqld_pre_systemd(39905): No such file or directory
avril 07 17:07:53 laptop-de-mathis mysqld_pre_systemd(39906): No such file or directory
avril 07 17:07:53 laptop-de-mathis python3(39907): detected unhandled Python exception in '/usr/sbin/semanage'
avril 07 17:07:53 laptop-de-mathis mysqld_pre_systemd(39909): No such file or directory
avril 07 17:07:53 laptop-de-mathis python3(39910): detected unhandled Python exception in '/usr/sbin/semanage'
avril 07 17:07:53 laptop-de-mathis mysqld_pre_systemd(39912): No such file or directory
avril 07 17:07:54 laptop-de-mathis systemd(1): mysqld.service: Main process exited, code=exited, status=1/FAILURE
avril 07 17:07:54 laptop-de-mathis systemd(1): mysqld.service: Failed with result 'exit-code'.
avril 07 17:07:54 laptop-de-mathis systemd(1): Failed to start MySQL Server.

I don’t really know what to do with this information. I also checked journalctl, but StackExchange considers it as spam, so I can’t post it.

Does anyone have an idea how to get me out of this situation?