qsqlmysql loaded library but QMYSQL driver not loaded

I can't connect to my SQL database using QSqlDatabase. My system is: Windows 11 Qt 6.9.0 llvm-mingw1706_64 MySql 8.0.41 running on a CentOs virtual machine.

I extract libmysql.dll, libmysql.lib and all .h files from mysqld installation file. Following the instruction from qt I compiled the mysql drivers and then I found qsqlmysql.dll in "C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers/"

Then I copied libmysql.dll in my progrma directory and set QT_DEBUG_PLUGINS=1.

QSqlDatabase.drivers() show that I have all drivers and qslmysql is loaded, but I still ha an error on QSqlDatabase open.

This is the application output:

qt.core.plugin.factoryloader: checking directory path "C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers" ...
qt.core.plugin.factoryloader: looking at "qsqlibase.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers/qsqlibase.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QIBASE"
        ]
    },
    "archlevel": 1,
    "className": "QIBaseDriverPlugin",
    "debug": false,
    "version": 395520
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QIBASE")
qt.core.plugin.factoryloader: looking at "qsqlite.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers/qsqlite.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QSQLITE"
        ]
    },
    "archlevel": 1,
    "className": "QSQLiteDriverPlugin",
    "debug": false,
    "version": 395520
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QSQLITE")
qt.core.plugin.factoryloader: looking at "qsqlmimer.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers/qsqlmimer.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QMIMER"
        ]
    },
    "archlevel": 1,
    "className": "QMimerSQLDriverPlugin",
    "debug": false,
    "version": 395520
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QMIMER")
qt.core.plugin.factoryloader: looking at "qsqlmysql.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers/qsqlmysql.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QMYSQL",
            "QMARIADB"
        ]
    },
    "archlevel": 1,
    "className": "QMYSQLDriverPlugin",
    "debug": false,
    "version": 395520
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QMYSQL", "QMARIADB")
qt.core.plugin.factoryloader: looking at "qsqloci.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers/qsqloci.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QOCI"
        ]
    },
    "archlevel": 1,
    "className": "QOCIDriverPlugin",
    "debug": false,
    "version": 395520
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QOCI")
qt.core.plugin.factoryloader: looking at "qsqlodbc.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers/qsqlodbc.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QODBC"
        ]
    },
    "archlevel": 1,
    "className": "QODBCDriverPlugin",
    "debug": false,
    "version": 395520
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QODBC")
qt.core.plugin.factoryloader: looking at "qsqlpsql.dll"
qt.core.plugin.loader: Found metadata in lib C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers/qsqlpsql.dll, metadata=
{
    "IID": "org.qt-project.Qt.QSqlDriverFactoryInterface",
    "MetaData": {
        "Keys": [
            "QPSQL"
        ]
    },
    "archlevel": 1,
    "className": "QPSQLDriverPlugin",
    "debug": false,
    "version": 395520
}


qt.core.plugin.factoryloader: Got keys from plugin meta data QList("QPSQL")
qt.core.plugin.factoryloader: checking directory path "C:/Users/00005197/OneDrive - ansaldoenergiagroup/Documenti/Lavori/C++/Catalog/build/Desktop_Qt_6_9_0_llvm_mingw_64_bit-Debug/debug/sqldrivers" ...
qt.core.library: "C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers/qsqlmysql.dll" loaded library
"C:/Qt/6.9.0/llvm-mingw_64/plugins/iconengines/qsvgicon.dll" unloaded library 
"C:/Qt/6.9.0/llvm-mingw_64/plugins/platforms/qwindows.dll" unloaded library 
"C:/Qt/6.9.0/llvm-mingw_64/plugins/sqldrivers/qsqlmysql.dll" unloaded library 
"C:/Qt/6.9.0/llvm-mingw_64/plugins/styles/qmodernwindowsstyle.dll" unloaded library 
15:10:19: C:\Users\00005197\OneDrive - ansaldoenergiagroup\Documenti\Lavori\C++\Catalog\build\Desktop_Qt_6_9_0_llvm_mingw_64_bit-Debug\debug\Catalog.exe exited with code 0

Can someone explain me what I've done wrong? Thank you.enter code here