Lamda voltage issues/alternator

[Broscheslide]

Can a failing alternator cause the lambda voltage to behave erratically? Cars tuned professionally. Been driving it for a year now. Noticed the lambda voltage wasn’t steady. Afr on aem gauge is fine. Had my alternator tested. Failed. Gonna replace it, just wanted to see if something else could be the issue

[Spunkster]

Once the alternator is replaced, see if the issue is resolved.

[MadVTI]

I am having a similar issue