"Sales for Sony's Game & Network Services division increased 18% to 1,943.8 billion yen for the quarter. The company attributed this in large part to an increase in PS4 software sales, which were up to 52 million units from 50.6 million during the same period last year. That included a major uptick in digital sales, as 43% of games sold were digital, as compared with 37% the year prior. For the full year, 32% of full games were sold digitally."
For Nintendo we would have to use their sales numbers and compare them to vgchartz. Here's a link https://www.nintendo.co.jp/ir/en/finance/hard_soft/.
So as of March 31st
75% of Switch sales were physical and 25% digital
87.3% of 3DS sales were physical and 12.7% digital
90% of Wii U sales were physical and 10% digital.
We dont have anything from MS but Xbox usually has a higger digital to physical ratio compared to Nintendo and Sony. With their play anywhere program and backwards compatibility i'd assume its around 45-50%.