submitting sitemap to google console

If you are submitting sitemap for pbn to google how to prevent footprint? Have to setup different gmail for each console submission? any other solution to index these links?

It's really harsh. The only way is to get different Google accounts, one for each PBN site with proxy, not using Google Chrome, etc... Most people prefer to index their PBN as if it was an external site, without GSC. It's easy to get burned if you play with fire.