thr article is talking about how that protocol can male you more vulnrable to browser fingerprinting i think im not sure the main complaint is with all these no kyc vpns they get linked to you as soon as you login so your shifting the burden of trust from your isp to the vpn
on modern smart phones or any device i would not trust any software based toggles it needs to be physical you can easily wrap your phone in about 6 layers of tin foil and know that its not pining cell towers or better yet leave your phone home so it looks like you never left your house
with freetube do you also have memory tagging issues?