The article says it only applies to temp hires.
Title 38 employees are temps only.
Here is what the article said exactly:
{...
Title 38 VA healthcare personnel, including physicians, dentists, registered nurses, and others, will have eight weeks to become fully vaccinated against the disease in compliance with the new policy, the department said in a
press release.
"We're mandating vaccines for Title 38 employees because it's the best way to keep veterans safe, especially as the delta variant spreads across the country," McDonough said. "Whenever a Veteran or VA employee sets foot in a VA facility, they deserve to know that we have done everything in our power to protect them from COVID-19. With this mandate, we can once again make — and keep — that fundamental promise."
...}
But to find out what a Title 38 employee is, you have to look up the VA Handbook:
{...
4. EXCLUSIONS
a. Officers appointed by the President, by and with the advice and consent of the Senate, or by the President alone, to positions for which rates of basic compensation may exceed the maximum rate provided in the General Schedule.
b. Employees in the Senior Executive Service.
c. Physicians, dentists, nurses, and other employees in the Veterans Health Administration whose pay is fixed under 38 U.S.C., chapter 74. (See part II of this handbook.)
d. Employees in the Veterans Health Administration appointed under 38 U.S.C., chapter 73.
e. Non-U.S. citizens employed at the VA Regional Office, Manila, Republic of the Philippines, who are paid according to local prevailing wage rates.
f. Temporary employees in the excepted service for which employment is not reasonably expected to exceed 90 days in a 12-month period.
g. Members of the Board of Veterans' Appeals.
h. Members of the Board of Contract Appeals. [Title 38 employees whose performance is appraised using VA Form 3482e.
...}
So normal VA employees have a fixed pay, so then are exempt from Title 38, by part "c.".
"c. Physicians, dentists, nurses, and other employees in the Veterans Health Administration whose pay is fixed under 38 U.S.C., chapter 74."
So then this only refers to Title 38 employees who do not have a fixed salary, meaning they are contractor or temps.