This made me think of Github's charity dodgeball tournament. The last one was in 2016. For an entry fee that went to a donation to charity, your company could field a dodgeball team. It was super fun, and we (at Twilio) attended for several years.

While I'm not going to say they stopped because of Microsoft (they didn't get acquired until 2018, though I would expect that talks were probably underway by sometime in 2017), the loss of something like this does feel emblematic of how tech culture got significantly less fun toward the end of the 2010s, and the pandemic just killed the rest of it for me.

(Of course, "fun" is in the eye of the beholder. It's possible that my tastes just changed as I got older.)