Is mime-sniffing still something to protect against with modern browsers (with X-Content-Type-Options)?

I have read about X-Content-Type-Options and it says often that it protects against IE mime sniffing problems.
I am wondering if in 2021 it is still valid and a problem for modern browsers? In other words, will it be beneficial for my web … Continue reading Is mime-sniffing still something to protect against with modern browsers (with X-Content-Type-Options)?