Spontaneous Crashes With No Crash Logs

I've been playing with my friends on a vanilla Snapshot server I've been running since I think 20w13b (maybe earlier), and everything was fine up until the snapshot before this one, when my Minecraft began randomly crashing at seemingly random points.  I spent most of my time in a Zombie dungeon-turned Drowned farm, and mining for Ancient Debris in the Nether, and this is where most of the crashes occurred, sometimes over 15 minutes apart, sometimes less than a minute apart.  I can only remember a crash happening in one other in-game situation, so I don't know if it's somehow related to both the Nether and the Drowned, or if it's not related to anything particular happening in-game.  The strangest part is that no crash logs are being generated (maybe this is normal for Snapshots, this is my first time playing a Snapshot so I don't know), so I have no idea what's causing the crashes.  When a crash occurs, a freeze happens for about two or three seconds, then the Minecraft Window closes and the Launcher pops up with the Crash Error Message and a close button.  Sometimes if I try to escape the Minecraft Window during the crash, it takes significantly longer and locks down my cursor, freezing both monitors for upwards of 15 seconds.  A rare few times it has even caused me to have to manually restart my computer, though this may have been my fault for trying to force too many commands by trying to Alt+Tab and Ctrl+Alt+Dlt out of the crash.