Solidity modifier vs function

differences.txt

just_modifier.sol
968 length 
MyContract (484 bytes)
Deployment costs: 90541 gas

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

function_modifier.sol
984 length
MyContract (492 bytes)
Deployment costs: 92141 gas.

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

function_modifier.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract MyContract {
    address public owner;
    function _onlyOwner() private view{
        require(msg.sender == owner);
    }
    modifier onlyOwner() {
        _onlyOwner();
        _;
    }
    
    function f1() external onlyOwner {
        // Do Something
    }
    function f2() external onlyOwner {
        // Do Something
    }
    function f3() external onlyOwner {
        // Do Something
    }
    function f4() external onlyOwner {
        // Do Something
    }
    function f5() external onlyOwner {
        // Do Something
    }
    function f6() external onlyOwner {
        // Do Something
    }
    function f7() external onlyOwner {
        // Do Something
    }
    function f8() external onlyOwner {
        // Do Something
    }
    function f9() external onlyOwner {
        // Do Something
    }
    function f10() external onlyOwner {
        // Do Something
    }
    function f11() external onlyOwner {
        // Do Something
    }
    function f12() external onlyOwner {
        // Do Something
    }
    function f13() external onlyOwner {
        // Do Something
    }function f14() external onlyOwner {
        // Do Something
    }
    function f15() external onlyOwner {
        // Do Something
    }
    function f16() external onlyOwner {
        // Do Something
    }
    function f17() external onlyOwner {
        // Do Something
    }
    function f18() external onlyOwner {
        // Do Something
    }
    function f19() external onlyOwner {
        // Do Something
    }
    function f20() external onlyOwner {
        // Do Something
    }
    
}

just_modifier.sol

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract MyContract {
    address public owner;
    modifier onlyOwner() {
        require(msg.sender == owner);
        _;
    }
    
    function f1() external onlyOwner {
        // Do Something
    }
    function f2() external onlyOwner {
        // Do Something
    }
    function f3() external onlyOwner {
        // Do Something
    }
    function f4() external onlyOwner {
        // Do Something
    }
    function f5() external onlyOwner {
        // Do Something
    }
    function f6() external onlyOwner {
        // Do Something
    }
    function f7() external onlyOwner {
        // Do Something
    }
    function f8() external onlyOwner {
        // Do Something
    }
    function f9() external onlyOwner {
        // Do Something
    }
    function f10() external onlyOwner {
        // Do Something
    }
    function f11() external onlyOwner {
        // Do Something
    }
    function f12() external onlyOwner {
        // Do Something
    }
    function f13() external onlyOwner {
        // Do Something
    }function f14() external onlyOwner {
        // Do Something
    }
    function f15() external onlyOwner {
        // Do Something
    }
    function f16() external onlyOwner {
        // Do Something
    }
    function f17() external onlyOwner {
        // Do Something
    }
    function f18() external onlyOwner {
        // Do Something
    }
    function f19() external onlyOwner {
        // Do Something
    }
    function f20() external onlyOwner {
        // Do Something
    }
    
}