If that is the case,

option 1: use Proxy in the country where the video is originated, prob. US. See: list of proxies. There are browser addon for your convenience. see: https://www.sslproxies.org/

Nice option, but not recommended.

option 2: use paid strictly no logs VPN to exit in country where video is originated. https://www.vpnmentor.com/blog/best-no-log-vpns/

e.g. If you are in Germany, and want to see a regional blocked video, probably using an exit server in the US or Canada will solve your issue.

Recommendation: use paid, strictly no logs VPN. You get what you pay for.

If you are on spyware OS, like Win10, dump it in favor of LMDE or MXlinux. -> obtain iso; make livecd for tryout. Consult available howto.

Alternative 1. Use ubuntu for windows. https://www.microsoft.com/en-us/p/ubuntu/9nblggh4msv6

alternative 2: setup virtualization in windows, download iso, install iso virtually. This way you can use linux on top of windows .

Alternative 3: setup dual boot by first installing Linux and then windows. See howto dual boot

Alternative 4. shut down computer, Remove harddisk, insert new harddisk, reboot with usb linux livecd; install linux iso from usb.

add:

set: https everywhere. modus strict. Why? because HTTPS will scramble the header so traffic is only readable by you and the DNS/ Site you are requesting/ visiting.

Ublock origin

user-agent spoof.

Nitter.net

invidious redirect.

Learn to use youtube-dl.