I run a Piped instance on a VPS for myself. It's not linked to my Google account or my home IP (from Alphabet's perspective) in any way. I like giving Alphabet less info about my behavior.
If you only care about the channels you’re subscribed to, it’s a much better experience.
A tremendous advantage to viewing without authenticating is that you can quickly set a strong affinity based on your current interests, and don't have to live with consequences of viewing low-quality content for hours, days, months, years, millennia, etc.
If Invidious and Piped offer(ed) the option to permabam channels as well (to those subscribing directly to those services, or even within a single session), so much the better.