In 2013 ICAO published the first PBN manual, which finally introduced a global standard to the myriad of terms used to describe the approaches formally known only as GPS approaches. It introduced the concept of approaches with vertical guidance or APV. Baro Vnav is one, LPV is another. Industry and all regulators are still trying to comply with the ICAO guidance, hence some non standard terms floating around. You need to check what your installation is set up to do, not what is written in the salesman’s glossy brochure. Read the AFM and the respective supplement, if unsure contact the owner if the STC. If if doesn’t say anything about Baro Vnav , don’t descend below the LNAV minima.