Simplewall
Prompt on screen
Older UI as compare to tinywall
I haven't found an option for block by PID if in case it bother you
Packet logging is there, helpful for insight
Update: DNS query resolve available (* only on pop up window, not available in packet log history)
Last update 05 / 09 / 2020 (https://github.com/henrypp/simplewall/blob/master/CHANGELOG.md)