So what are you expecting to place in PCI-e slots that are necessary?
I'd rather have them as is or only one slot for the GPU.
Some of us actually do things with our computers
Looking at my system right now:
1. GPU
2. Eight port SATA card - connects to an Athena Power 8 bay internal Sata enclosure, which holds 16 tb of SATA ssd drives
3. Four port USB 3 card - connects to my DAS enclosures
4. Sound Card - because I was not impressed with the on-board audio on the X570 Riptide motherboard
I also have an eSATA pass through for my Mercury Qx2.
That is 4 PCIe cards; going with the M.2 adapter, I could replace the 8 port sata card with a m.2 adapter with 2 SAS to Sata connectors - oh wait, I can't because the m.2 drives are covered up with the heat sinks.
Looks like I am staying on AM4 for a while.