Just switched from iPhone to Pixel 11 Pro – why do certain apps get stuck on loading screen on home Wi-Fi?

I just switched from iOS to a Pixel 11 Pro. Mostly loving it, but I’ve hit a weird network bug that’s driving me crazy.

Certain apps that pull live data, specifically Garmin Connect, OneFootball, TNNS Live Scores, and Fable take forever to launch when I'm on my home Wi-Fi. They just sit on an infinite loading screen.The second I turn Wi-Fi off and use mobile data, they open instantly.This only happens on my home Wi-Fi. My old iPhone handles these exact same apps perfectly on the same network, so it feels like a weird Android vs. router protocol conflict.

What I've already tried:

Clearing app caches/data

Setting phone's Private DNS to "Off" and dns.google

Changing Wi-Fi settings to a Static IP with Google DNS (8.8.8.8)

Splitting my router into separate 2.4GHz and 5GHz bands (Pixel is on 5GHz)

None of it worked.

I noticed that at work the network type is WiFi 5 and I don't encounter the issues mentioned. The network type at home is WiFi 6, so maybe that explains the cause.

Has anyone else dealt with this? Are there any hidden router settings or Pixel settings can toggle to force it to behave?

Thanks!