How to implement a non-upgradeable proxy with constructor/initializer calls that can have varying signatures?

[eeshenggoh]

Hi, I need some help with my question, in regards to purpose of using non-upgradeable vs upgradeable proxies? Why would anyone wants to use non-upgradeable proxies?

What's the difference between upgradable and non upgradable Initializable contracts? Aren't all proxies meant to be support upgradable implementation contract?

What's the difference between upgradable and non upgradable proxies contracts? @openzeppelin/contracts/proxy/utils/Initializable.sol vs @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol Why would anyone use proxies that do not support upgradable contracts? Instead, just create contract without a proxy, doesn't that save the trouble? // SPDX-License-Identifier: MIT pragma solidity 0.8.15; import { Initializable } from "@openzeppelin/contracts/proxy/utils/Initializable.sol"; …