Why don't you just try it out, and see for yourself with absolute certainty what happens?
Alternatively, why doesn't Garmin explain the features of their products in their documentation…
?what are the differences betwwen "rest, cool down and recover". what every function does when im actually running
They aren't different functions, and they neither make your watch do anything different nor force you to behave differently. You can consider them just different labels that can be applied to a workout step, and that label you chose for a given step will be displayed on the watch when it comes to that step.
Yes, they are just different labels to use as a guide for workouts. Sorry if I didn't make that clear, and sorry if I needlessly explained basic workout stuff that everyone already understands.
Rest and recovery both count in your final time -- all of the steps are recorded in your activity, unless you pause your watch.
What you may have heard is that people want rest to not count in the total training time/activity record, but it isn't the case.
Why don't you just try it out, and see for yourself with absolute certainty what happens?
Alternatively, why doesn't Garmin explain the features of their products in their documentation?
I know that this thread is ancient; nonetheless, here I am three years later seeking an answer to the same question the OP asked because the 44 page user manual for my watch doesn't even touch on this subject. I already had to derive empirically the various features of the Pool Swim workout; I'd prefer not to have to do that for Run workouts too, but alas...
The terms should not be used interchangeably.
A Garmin suggested workout will include rest when it's a static rest and recover when it's passive.
In my experience rest does not count towards your final time where recover does.
I'm here seeking the same answer.