I have 8 product pages with 5 tabs each. 4 out of 5 of these pages have the same content because information about these products is basically the same.
It means about 70% of the product page is the same across these 8 product pages. An example here:
Do you think my site will lose in Google’s eyes?
If yes, I should probably make the other tabs link to non-collection static pages, but then again, there is no option to link a tab to a separate, static page with a different url: