It might be an ineffective method to solve this issue but I tried to add {{ product.vendor }} within tab3_content since the content of the Vendor Tab in the product page was coming from tabs.liquid.
So I located tab3_content within tabs.liquid nd replaced {{ tab3_content }} with {{ product.vendor }}:
{%- if tab3_title != blank and tab3_content != blank -%}
{%- if display_type == "accordion" -%}
{{ tab3_title }}
{%- endif -%}
{{ product.vendor }}
{%- endif -%}
It is doing the job for now, but might encounter problems later on.
See how the product vendor renders within the tabs on product page below:
Thanks for the help everybody!!
