Not sure about <blink>, but I sampled a few random sites from their gallery[1] and all of them have <marquee>. <marquee> is deprecated[2] and no longer scrolls in Firefox, but still works in Chrome.
I don’t think Firefox or its ancestor Netscape Navigator ever supported <marquee>. It’s a non-standard tag that IE introduced and was pretty widely despised at the time (as was <blink> but at least text blighted by the latter stays put).
For some reason the Indian government LOVES marquee, to the point where it's almost a hallmark. Looks like marquee...finds a way.
[0] https://www.mygov.in/
[1] https://www.mea.gov.in/
[2] https://ociservices.gov.in/onlineOCI/
[3] https://www.passportindia.gov.in/psp