When board powered up led turn on for 1min and meanwhile when button pressed turn off it immediately

[StefanL38]

The example-code that you posted uses the function millis() for debouncing the button.
This is something different that "waiting for a button-press to switch of an LED"

For the task "waiting for a button-press to switch of an LED" debouncing is not nescessary.

As a pseudo-code

in a arduino-board is powered up the function setup() is executed once

So inside function setup() you code:

switch LED ON

if power is supplied to the arduino-board the function loop() is doing what its name says:

looping infinitely.

So inside loop() you have to do two things
checking if the button is pressed
checking how much time has gone by since powerup

if button is pressed: switch off LED

if one minute has passed by: switch LED off.

The established users just link to this very unsatisfying BWD-example.

Here is a short tutorial that is easier to understand as the "standard" Blink-without-delay-example. (I'd like to call it "blink without explain" )

Example-code for timing based on millis() easier to understand through the use of example-numbers / avoiding delay()

non-blocking timing. Execute code only from time to time. There are a lot of different ways to learn programming. This thread wants to add another approach that is different to the yet existing ones. UPDATE 06.01.2023 if you are mainly interested in applying non-blocking timing you can do a quick read of this short tutorial / demonstration If you are intersted in understanding the details how it works go on reading here. I use an everyday analogon in this post to explain the basic principle …

So please start reading the example-code and then ask specific questions if you do not understand something

best regards Stefan