How can I fix connectivity and streaming problems on my Apple devices?

I am a 15 years user of Apple devices. However, Last two months were much worse than usual. Network connectivity issues are everywhere. iMac M4, iPad Pro 12.9, iPhone Pro 16. I thought that was a provider issue. And even spent countless hours troubleshooting to make sure this is not a Fios issue. Connections just stalls. For example, page in desktop Safari won't load unless you refresh it. Streaming services for music heavily skip or stall completely after seconds/minutes of playing. What was more interesting, and come as observation from my wife, and I confirmed on my phone as well. Allstate Drivewise breaks trips for 4-5 parts, like every few minutes. This was not happening before! Finally, after hours with Tidal and Qobuz support, and considering idea which come from my friend audiophile - I installed Qobuz on my spare Android phone, and vuala, Qobuz streaming with zero stops or skips! Same Wifi network. 24/192k songs! This should be addressed. I have seen other thread which were already closed with providing zero help instructions. I am on 1 Gbit Fios. Same behavior on T-Mobile. So, it is not a network issue. I reinstalled iPad as a new and issue persists. Was able to play exactly 0 seconds on Qobuz after first start of app. Killed and restarted it and played 20 seconds before stalling again. Not good. Please resolve.

[Re-Titled by Moderator]

Original Title: Apple devices connectivity issues