Here’s what I would do.
Router: I like ubiquiti, so UDM SE.
Switch: I’d go with a 48port Poe switch probably at least pro version. Connect this switch to the UDM SE via the SFP+ port.
AP’s:
I’d go ceiling mounted AP’s. Tons of people like the U6 pros.
Your ISP gateway/modem should be in the same spot as the above.
Use Cat6A and fiber if you want to future proof, not Cat8. Also run more Ethernet than you think you will need. If you need 2 in a spot, run at least 4 unless you are absolute that you will not need more. Utilize fiber on the run for the outdoor AP and then connect that AP to a Poe switch. This protects your main equipment from an electrical surge coming from the outdoor AP. Your exposure is the AP and the switch you use to power the AP.
Make sure your networking closet is well ventilated, has dedicated power(at least 20 amps, maybe have a 20amp line and then something more so you can utilize a higher VA UPS. Then install a UPS. And plug everything networking into the UPS.
I can’t tell you about your AP placement as I’m not in your house.