Why did my phone’s flashlight turn off unexpectedly?

Today, my Android phone's flashlight unexpectedly turned off while it was on. I'm sure I didn't tap the flashlight button or use any camera app. This has me wondering if it could be malware. A few months ago, I was behind on updates and installed a sketchy third-party app, but I deleted that app and updated my phone recently. Now, I'm concerned that there might still be something malicious on my device. Is there any insight on what could have caused the flashlight to turn off, or should I be worried about malware? I have a Samsung Galaxy Note 20, and I tried to replicate the issue, but it hasn't happened again. Sorry if this sounds paranoid, but I tend to be a bit anxious about these things.