How is it going to be like?
If you are wondering as to how it is going to be like and how you can actually access it, here's the GIF shared by Google to get the picture really clear for you:
How does one access this?
In order to access this, you would need to first login to your Google Search Console and click on the URL Inspection tool. Then, you could enter the URL and test it live. Right after you enter the URL to the URL Inspection tool, you get full access to the all the features set within the tool.
What is new?
This is what Google tweeted about this new feature recently: "You can now see the HTTP response, page resources, JS logs and a rendered screenshot for a crawled page right from within the Inspect URL tool."
How much does it really matter?
Comprehending the way Google views and renders a page after it crawls it is pretty useful for the SEO strategists as well as webmasters. It can be also pretty useful for the developers as this will help them develop a website in a way which is more convenient for the Googlebot to understand the page content. Using this tool you can actually see every single issue in a very specific manner so that you can address them in time and most importantly, address them in a very accurate way.