I have a similar issue with sleep. The last version of Windows that sleep worked was 1809. When I installed 1903 my computer crashed, when I used sleep or hibernate. I rolled back to 1809 and everything was fine. I was promised a fix with 1909, so I installed it and found a partial fix. 1909 stopped the crashing from sleep and hibernate, but slowed the recovery from sleep to almost 2 minutes.
I have given up using sleep, and now hibernate my computer at night.
My machine is similar to yours machine. I have an HP desktop with a Ryzen 7 1700. I suspect the motherboard is Asus.
With the installation of 1903, the performance of my machine improved greatly.