yep this happened to me maybe 5-6 years ago. Luckily it was the bottom shelf that only had the PS4 on it shattered so it didn't fall too far
I assumed it was from using the PS4 and it constantly heating and cooling the glass that over time it cracked
https://imgtc.com/i/iJnhdkc.gif
https://imgtc.com/i/j45EVGx.png