Search engines treat anchor text as one of the strongest topical signals available — both for internal links and inbound links from other sites. A page linked from thousands of pages with anchor text 'WordPress sheet editor' is going to be associated with that topic, sometimes even more strongly than its own on-page content.
The taxonomy that matters in practice: exact-match anchors ('Webanto sheet editor'), partial-match ('best sheet editor for WordPress'), branded ('Webanto'), generic ('click here', 'read more'), and naked URL ('https://...'). A healthy backlink profile contains a mix; an overwhelmingly exact-match profile looks manipulative and can be devalued.
Inside your own site, you control every anchor. Use descriptive, varied anchors that read naturally. Avoid the temptation to stuff exact-match anchors into every internal link — it does not help and can hurt.