Generative credit and lightroom?

I have the photography plan that includes photoshp and lightroom.  I heard and read about generative credit which I thought was only for firefly, which I never used.  I notice credits were deducted from my account and I only remember using lightroom to remove background objects.  Does generative credit used for any ai related functions, in photoshop or lightroom?  Will I get charged extra if I run out of credit?  Hoping to get some straight answers instead of spending time reading many pages of document which leads me to nowhere.