I'm running OpenSUSE leap 15.5, When I was on the linux mint, I was using warpinator but using it on openSUSE is troublesome and I wish there was a linux version of blip but unfortunately there is not.
I drop files I want to share in ~/public_html/files/ as I have a webserver running on my desktop with the firewall open to the local network. Might be tough for a noob to setup though. But on my phone the file shows up in /~christopher/files/ and I have trouble remembering how to type the tilde.