Download/Upload Speed....Streaming....?

I called AT&T yesterday because when I stream hulu, Netflix or Prime, the programming halts - then restarts, then halts again.  They scheduled a tech to come out next day, he did and then he left with no explanation as what he did or what was next. I called back in today and got Donnika in the Phillipines, after 20 minutes of being on hold and having to explain my issue - she came back the notes from the tech indicated I left early before resolution.  Not true, I never left my house.  I did a speed test: Download is consistently around 2.2 Mbps and Upload averages about .82 Mbps.  I asked to be transferred to someone in US, I got Pierre great guy, checked notes on account by tech and no ETA. At this point, on the phone for 1 hour 5 minutes....still on hold.

When I switched from Comcast/xFinity, I specifically told the AT&T Sales Rep. that I:  (1) Work from home, (2) I stream those services mentioned above, (3) I'll have security cams linked and (4) I have cell phones, tablets and laptops that will need access without issue. They told me - "No problem."

Question:  MUST a consumer choose an ISP other than AT&T to be able to stream services without frequent lags - AND for speeds faster than D-2.2 Mbps and U-.82 Mbps?

If the answer is yes, I'll spread the news with my fellow virtual work team members.  I'll also send another letter to the F.C.C. - concerned over advertising being so different from reality.

P.S....I'm still on hold for a Supervisor...1 hour and 17 minutes in.

Thanks,