How is my 2.4GHz Wi-Fi working with my 2.4GHz Bluetooth(pixel buds) on my phone?

I just want to know how this working for the sake of my sanity. I have a dual band D-LINK DIR-819 router (which has both 2.4GHz and 5GHz bands). I am connecting my Google Pixel Buds Series A on my Samsung Galaxy A31 along with the 2.4GHz WiFi. And the funny thing is that they both work fine. How are they both working on the 2.4GHz ? There cannot be Bluetooth and WiFi on the 2.4GHz spectrum right ? Is it something to do with the fact that my router is a dual-band router ? I used to have a D-LINK DIR 505 with only 2.4GHz where the Wi-Fi would basically stop transmitting when it was used simultan

Question by ng.newbie on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.