Hi @hellomenew , this will vary by theme, you need to find all instances of “{{ product.title }}” in the files , or also variant.title.
Since the product title is used so primarily is can be many files to dig through.
For example in OS2.0 themes such as dawn looking for the sections/product.liquid and others https://github.com/search?q=repo%3AShopify%2Fdawn%20product.title&type=code
If your going to be tweaking the format of the title you may want to make a snippet to insert the product title with your formatting to replace all instances of the simpler liquid output.
If you need this customization then contact me by my email for services, or DM(slower)
Contact info in forum signature.
ALWAYS please provide context, examples: store url, theme name, post url(s) , or any further detail in ALL correspondence.