do I need to resubmit the sitemap to the Google search console?
Yes. It might help Google to discover your new URLs quicker and will give you a more accurate representation of which URLs are indexed.
does removing date from blog URL helps in SEO ranking?
Maybe, but probably not. URLs play only a very small part in SEO ranking, the content is the ...
I found the problem. In France, for website of press, Google remove description of results.
To improve this, add this meta in page source code:
<meta name="robots" content="max-snippet:-1, max-image-preview:large, max-video-preview:-1">
As with most advice, it depends.
If the categories or tags are good landing pages for your visitors - they group posts in ways that make them easier to find - don't disable them just because you're nervous about SEO. You can work to make those pages' content more unique by doing things like adding intro text and images, and/or displaying the excerpts in ...