Is the LG UltraFine 5K Display when hooked to a 2019 Mac Pro a true 10bpc monitor?

True 10bpc is critical to my workflow. If not true 10-bit per channel, does the high frame rate averaging and simulation of 10bpc truly yield 10bpc, or as close to 10-bit as possible using 8 bits with extraordinay 10-boy averaging/simulation? I need an accurate representation of 10-bit for accurate color grading and so much more.

I don't know whether to purchase the LG 5K monitor, or whether to seek out a true 10bpc monitor. Any suggestions or recommendations would be greatly appreciated, including other monitor options, excluding the spectacular but unaffordale new XDR Apple monitor, which I understand is most probably the best monitor for 10-bit and HDR in existence.

Again, any and all suggestions, potential solutions for serious 10-bit grading will be more than greatly appreciated. I very much wish the new XDR was within my budget, as the perfect compliment to the 2019 loaded Mac Pro.