It is, yes. The issue being they might ban your ip address, which is the first reason why the instances are not playing videos specifically, and then you can not access Youtube servers from the IP you called the servers from. For example, if you use it this way from home without a vpn or orbot, you will likely not be able to access the Youtube servers after a ban from any device that is running over your router directly to the Youtube servers and not over a VPN. I do not know why they do this though, might just be the sheer amount of requests. Not sure, though just don’t. Use protection. An Internet condom. Orbot is free and so is the free version of Proton VPN. Do not use random free VPNs though. If the VPN gets banned you slip on another condom.