I brought this very issue up a few months ago and got ratio'd since it wasn't layoff related.
I've tried two premium brand 5g phones in Marietta, Alpharetta, and Coral Springs from two carriers, Verizon and T-Mobile. I can sometimes get a 1 bar 4g signal, but rarely. As soon as I step out of the door, I get 4-5 bars of 5g or 5gUW indicating a high likelihood of low-e windows or window coverings since the doors at all three facilities I've directly seen this problem at had typical metal frame doors with glass panels. Furthermore, by shoving so many into an office, even low-effective signal blocking gets a boost in effectiveness because so many people are trying to get a signal through that blocking.
To those saying it's illegal to block a signal, that's only true with active jamming. Passive blocking using low-e windows and paint or wallpaper with metal fragments is NOT illegal or at least a gray area with the FCC. Given so many people in most of the offices (especially COE facilities) have this problem, it's not unreasonable to think a little extra was thrown in the buildout budgets to facilitate this.
https://electronics.howstuffworks.com/cell-phone-jammer6.htm
In the last 10-15 years, I've worked at two companies that had this "problem" both had leadership very vocal in their belief that people were just sitting at their desk playing candy crush all day... Frankie boi and his goons are that second company/leadership team.
And to @wkl+1qwtaGPa You can blow it out your rear, trolling or not, this is a safety issue. Some of us have illnesses that require access to emergency services, or family at home that have illnesses and would need to contact us while at work. Grow up.