PS5 Connection Issues when using both Wifi/LAN

Connection Issues:
- connecting to game servers or ps online

- losing connection from game server mid game

- other ps online features spotty

- latency

All the above issues are occurs regardless if I'm connected via wifi or LAN.

All the above issues occur randomly.  But not simultaneously, which is super weird since all the above issues are internet based.
Then I research and troubleshoot, trying different things. Something I do fixes it, but issues returns awhile.

Tried disconnecting/reconnecting from internet.

Resetting both router and ps5 (including re-builiding database)

Tried adjusting DNS settings

Oddly, my PS5 is the only device having issues so I thought it was a playstation issue.  That is, until I connected my ps5 to my phone's hotspot and had no connection issues at all. Additionally, I used T-Mobile's home internet and had not connection issues at all.  I'm thinking this is an issue on xfinity side. I will have to switch to a different ISP if I can't get this resolved as gaming is one of my top 2 reasons for having internet.