Needing to put food on your table is a good motivator.

Also - you might want to check something - https://en.wikipedia.org/wiki/Microsoft_and_open_source Even allowing for the three Es, MS has employed a number of people who worked exclusively on FOSS projects.

For me, one 2001 game is lodged forever in my mind, Hostile Waters

It's a great game, although sadly won't run on modern systems. And not strictly voice acting, more narration, but I've just re-watched the intro and Tom Baker's narration still gives me shivers.

Almost a quarter of a century since I first played it, the phrase "These are hostile waters" in Tom's voice still pops into my head from time to time.

Beat me to it. This unskippable sequence has stopped me replaying Skyrim at least twice.

Frankly, it's a bloody weird thing to do unless medically required. Leave him be.

You should contact a local history group or museum. That could be a significant find - it' clearly old, possibly thousands of years.