.psd as archive file, make all relevant copies from the archive file in various formats/bit depth. .png is just a .jpg with an alpha channel, that is, it's a compression format. .jpg is better for a wider range of color, .png is best for BW linework. For very high quality displacements, utilize 16 bit tif.

Zbrush saves out as 16 bit .psd when you export the alpha.

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W10 Pro, HP Envy X360 Laptop, Intel Core i7-10510U, NVIDIA GeForce MX250, Intel UHD, 16 GB DDR4-2400 SDRAM, 1 TB PCIe NVMe M.2 SSD

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