How’d I get it?

There are not many candidates that I can put forth, as I usually don’t leave the house. So it’s down to visitors, either masked or no.
Two possible instances, one more likely than the other. I’ll add in the timeline as I go.
The first event was a family get together on Oct. 10.
There were 10 of us. Us, the kids, my folks, and step dad’s family.
The folks drove up, mom can no longer be left at home while Vic makes his business trips, as she falls too much. I suggested she come up, which of course meant that everyone else had to come to our place to visit as she couldn’t move well.
Conditions–So we were mostly outside, no masks, not properly socially distant anyway.

Vic was comfortable enough with the situation, saying after the fact that Thom and Zana were regularly tested in regards to their jobs. Kayt and James, no clue.
The folks left town on Oct 15. The whole trip up and whenever traveling, the folks are allegedly very good about precautions–however good you can be while traveling through six states, going out to eat and staying in various hotels.
Next instance in the timeline is five days later, Tuesday Oct. 20th, where we had Connor from UNIVERSAL WINDOWS come by the house in order to purchase some windows.

Young guy, masked, sat with us (also masked) for three solid hours as he wouldn’t leave without a deal. Right out of car dealership, he even pulled the old “I have to call my boss regarding this deal.”
After three hours, he mercifully left, having had his price chopped to 25% of the original–I’m sure part of the plan. Put down half up front.
Three days later, Friday, Oct. 23, the company sent a guy to take measurements. He was a bit looser about how to wear a mask and even though he was only there for 15 minutes, he left quite a stink in the house afterward.
Three days later, on Monday, Oct. 26, I started feeling “off”, like I was on the edge of getting a cold, but for a whole week, the other shoe didn’t drop.
When it did, I just plain felt worse and on Nov. 4th, tested positive. Four days later, felt worse, ten days after that, went to the hospital.

As for the sterling folks at UNIVERSAL WINDOWS, I made certain to keep them in the loop. The timeline, had their guys gotten tested, since they specifically go inside people’s homes?
I left a few messages regarding this. They never even responded. Once.
Oh, they were very prompt about getting ahold of me to confirm my downpayment though. I’ve since put in a dispute with my CC regarding their payment.
It’s not like I could ever allow these morons into my house again, all things considered.
So yeah, UNIVERSAL WINDOWS.
I wouldn’t.

Is it 100% that it was them? Hard to tell exactly of course, but their demeanor, behavior, timing and bad business practices and lack of communication skills raised every red flag.