The Infinity app for Reddit is a multi reddit account Android client. You can sign to multiple reddit accounts and you can also use the apps anonymous account feature. The anonymous account is browsing reddit without being in any of your accounts and essentially just like browsing reddit in a inconigo tab and not being logged in.
But you cannot anonymously browse lemmy.ml since your logged in. If your viewing it under [email protected], you cannot browse. So In this case you can anonymously browse on instances your not logged into and having this as the anonymous feature is very confusing.