Both consoles are going to be significantly more powerful than the "average" PC for quite a few years.
People on here would have you believe every PC has 3+GB/sec SSD and a 2080 with a top of the line Zen 2.
This is of course nonsense.
Look at the steam hardware survey for 2020, it's quite interesting and paints a very, very different picture than the narrative presented on sites like Resetera:
https://store.steampowered.com/hwsurvey
Have a peruse through, and see what % of PC gamers have rigs that can outperform PS5 or XSX. For example only 10% of PC gamers have 8 or more CPU cores. So PS5/XSX likely have more powerful CPUs than 90% of PC gamers.