CookieAuthenticationOptions, ExpireTimeSpan does not work

It does expire.

Make sure you do not have any background ajax activity as it extends the session (SlidingExpiration is true by default).

Also I had to manually delete the old cookie after I changed ExpireTimeSpan from the default 14 days to a smaller value.

You must set IsPersistent to true otherwise you don't run code

    ClaimsIdentity claimsIdentity = new ClaimsIdentity(Claims, CookieAuthenticationDefaults.AuthenticationScheme);

                var authProperties = new AuthenticationProperties
                {
                    IsPersistent = true

                };

                await HttpContext.SignInAsync(CookieAuthenticationDefaults.AuthenticationScheme, new ClaimsPrincipal(claimsIdentity), authProperties);