You don't say what MacOS you are running. If Catalina or later, JBridge will no longer run and it should be completely removed from your system.

Before that, it allowed 64 bit VSTs to run in 32 bit apps such as BIAB 2018 and earlier. It also claimed to let 32 bit VSTs run in 64 bit apps but wasn't very good at it.

JBridge


BIAB 2024 Audiophile Mac
24Core/60CoreGPU M2 MacStudioUltra/8TB/192GB Sequoia, M1 MBAir, 2012 MBP
Digital Performer11, LogicPro, Finale27/Dorico/Encore/SmartScorePro64/Notion6 /Overture5