Wtf my phone going from 55% to 5% in 20 minutes?

This literally has never happened before until just recently. Could this stupid GaG app really be causing it? I have Samsung Galaxy A34 5G, with Android 15 and One UI 7. My phone battery typically takes like 5 hours for it to drain from 55% to 5%, or maybe like half that time if I'm streaming or gaming. Never has it dropped so much in so little time; even my gaming laptop won't even drain the battery that quickly!
Wtf my phone going from 55% to 5% in 20 minutes?
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