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

Smart Contracts
1

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?

2

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.