Are CSS validation errors critical for SEO?

Question

css

The site when checking the validity of the code ( https://validator.w3.org) issues:

This document did not pass the W3C CSS Validator (Level 3) test

Total: 20 errors and 618 comments.
At the same time, everything is displayed exactly in all browsers, and the same Google bot sees the site in the same way as live guests of the site.
Do you think this has a significant impact on SEO? Does the ranking decrease, are hidden sanctions applied to the site?

Answer 1

If it is displayed correctly in browsers, then it does not affect. Conducted an experiment - corrected similar errors on 10 sites, there was no effect.

Answer 2

Certainly! Judging by what they write in the error, in half of the browsers your layout will not work at all. There are some functions that are only in drafts. Affects the promotion and very seriously!