First Impression-The phone heats up like crazy.Would recommend updating in a cool environment if possible.Keep the battery % above 50 and donot keep it plugged while updating. May cause screen issues. I personally removed the case and updated. Anyway...
No BUGS found till now after beta update in base S23 Model and luckily no GREEN LINE issue till now (Thank God).*But its best if you back up your data to Samsung cloud before updating the device.