Why isn't Google indexing all pages of my online store?

Are there any errors in the Coverage section of the Google Search Console?

Try to Manually request the indexing.
Log into to GSC > at the very top, in the Search Field, type in your website “https://we.surf” > Once the page processes, click on Request Indexing.

Also, you could try resubmitting the sitemap once again.

https://we.surf/sitemap.xml