Converting to sRGB is not enough. You need two more things to see the file correctly:
you need to embed the sRGB profile. Export will not do that by default, you need to check the box.
you need to view the exported file in a color managed viewer/web browser. Windows "Photos" is not color managed and can not be trusted.
If it still doesn't look right, you probably have a defective monitor profile. This is the other end of the color management chain. If you're not using a calibrator to make the monitor profile, you're probably getting profiles from the monitor/laptop manufacturer, distributed through Windows Update. These profiles are very often bad in different ways and this is a common problem.
The fix is a calibrator. If you don't have one, use sRGB for now.