Are Openzeppelin v5 upgradeable contracts not accepting setting initial values in constructor?

I read somewhere that because it is Openzeppelin v5 upgradeable contract, that's why there is no constructor setting initial values.

Is this correct, please?

It has nothing to do specifically with v5.
In a contract which implements OpenZeppelin's upgradability infrastructure (by inheriting it), the constructor initializes only immutable state variables, while all other state variables are initialized in a dedicated function which should be executed after the contract is deployed.