What does the FixedUpdate loop do? Why do developers use it?

Remember we are talking here about Unity. And FixedUpdate is used much more often than the Update there. And you can call it any number of times each frame in case the frame rate is low and you might not end up calling it if the frame rate is too high, The Physics calculations and the updates do occur a second after the fixedUpdate. And when you are applying the movement calculations with it, you are not required to multiply the values by the deltaTime Time.

Why it is called and the developer uses it?

It is called on a reliable timer and is not dependent on the frame rate.

To understand its usage you need to understand Update and LastUpdate.

Update:

And we call Update one time per frame. And for updating the frame it is the chief Workhorse function.

LateUpdate:

And this is called one time each frame, and after we finish Update.

Explanation:

Please find the details in the Answer section.

the benefits of raising bc’s minimum wage to $15 through a

series of pre-announced staged increases far outweigh the likely

costs. claims that such an increase will lead to massive job losses

in low-wage sectors of the economy are not credible.

• an increase to $15 would result in some job losses. however,

the likely impact is less than a 1 per cent reduction in the overall

provincial employment rate, and a 7.6 per cent reduction in the

employment rate for those currently making between $10.25

and $15 per hour.

• the large job loss impacts predicted by some opponents of

minimum wages misrepresent the existing economic research. in

reading and using that research, it is important to recognize that

estimates showing job loss effects of minimum wage increases

apply only to teenagers. estimated effects for young adult and

adult workers range from insignificant to non-existent.

• focusing on teenage workers plays up an inaccurate stereotype

about who earns very low wages in bc and leads to exaggerated

claims about job losses. only 26 per cent of those currently making

between $10.25 and $12 are teenagers, and only 5 per cent

of those making between $12 and $15 are teenagers.