To quickly share files with others: use python3 -m http.server. Then, on the destination machine, simply browse to <your LAN IP address>:8000 (you can find out the IP address using ifconfig). Afterwards, just stop the server command. Done!

$ cd <directory-you-want-to-share>

$ python3 -m http.server
Serving HTTP on 0.0.0.0 port 8000 (http://0.0.0.0:8000/) ...
127.0.0.1 - - [05/Feb/2022 13:37:22] "GET / HTTP/1.1" 200 -