In terms of traffic, my website received about ~24,000 visits in the span of about 3-4 weeks, with the majority of the views (~16,000) occurring in the first week, but the effect continued for quite some time after due to back-linking, social media sharing, and whatnot.
For reference, my site averaged less than 50 visits per month in total before my blog post hit the front page (in April 2021).
Only in the last month as of writing this comment (October 2021) have the numbers trickled down gradually from the hundreds to the tens.
In terms of performance, I have a static site (built with Jekyll, hosted on Netlify, BunnyCDN for media, and proxied through Cloudflare) so the traffic spike didn't affect the site at all. Not even a little bit.