This only affects those who registered their account on piefed. It allows them to login into their account and interact with the website. If your account is on lemmy (which is the case for you), it does not affect you in any way.
Basically, lemmy uses 2 different APIs:
One (activitypub) is used for communication between instances. It is the same for both Lemmy and piefed, so no work is needed on this front.
The second one is used for interacting between lemmy core and applications (like boost, but also lemmy webui). Piefed for whatever reasons decided to make it incompatible with Lemmy, so all application have to do some work in order to add piefed support.
This only affects those who registered their account on piefed. It allows them to login into their account and interact with the website. If your account is on lemmy (which is the case for you), it does not affect you in any way.
Basically, lemmy uses 2 different APIs:
One (activitypub) is used for communication between instances. It is the same for both Lemmy and piefed, so no work is needed on this front.
The second one is used for interacting between lemmy core and applications (like boost, but also lemmy webui). Piefed for whatever reasons decided to make it incompatible with Lemmy, so all application have to do some work in order to add piefed support.