wordpress shows that PHP has not been updated but I have updated in GCP

Hello,

I have my wordpress website hosted in GCP. The support team has helped me update my PHP version to 7.4. I have verified that my php version is 7.4 already via backed/SSH and even after restarting my NGINx and Apache2 services, the php version showing on my WordPress Admin Panel is not updated. Can you please help me with this? And what else can I do so that the PHP version on my WordPress Admin Panel can be updated.

My wordpress website OS is also Ubuntu 1804.

Appreciate the help!