Re: Hamony V3 : Tutorial PIC32MX or PIC32MZ
It seems you're planning to transition from the STM32 and lower end PICs to the PIC32.
I don't know if Microchip has any videos or tutorials yet for Harmony V3 but I would think it's similar to Harmony V2 so videos on YouTube might be a start until additional information is available.
MacBook Pro (Retina, 15-inch, Mid 2015) with MacOS High Sierra (10.14.5) and MPLAB X IDE v5.20
Curiosity PIC32MZ EF, PIC24F Curiosity, XPRESS EVAL BOARD (PIC16F18855), SAMA5D3 Xplained and various custom boards.