Erratic Model Processing Times - Only Source is Gen1 Dataflows

Shared. Premium Per User. In the cursed Central region. In process of migrating over to Fabric and Direct Lake. But for now, it is what it is. Architecture is medallion like. Set of dataflows for the bronze pulling from on-prem SQL, Onedrive, Sharepoint, Azure SQL, APIs, Gen2 storage, etc. Set of dataflows to transform bronze to "silver/gold". Semantic model built on top of "silver/gold" dataflows. Been stable for a couple of years and only over the last 8 days has the processing become as crazy as what it has been lately. My coworker blames it on me as I went on vacation last Friday. She thinks the semantic model is like a cat and everytime I leave it, it gets angry and seeks revenge.