Assalamu aleykum,
Istikhara is never required. One can decide to perform it, but since it is not an obligation, the answer to your question is no.
Please have a look at an interesting lecture about Istikhara in general:
https://www.islamicinsights.com/religion/clergy-corner/istikhara-to-do-o...
Hope this helps out understanding the matter inshaAllah.