Linux

I use primitive ftpd on the phone and FileZilla on the PC.

wifi file explorer pro apk

If by wirelessly you mean via Wi-Fi network then one convenient option is qrcp. It generates a QR-code right in your terminal, which you can scan with a phone and send/receive files through a web interface on the URL it provides.

If you want to transfer files regularly, there is another option. Almost every distro has Python installed, and the Python has a "built-in" FTP server. You need to just cd into desired directory and run the command python -m pyftpdlib -w. It will open a FTP server with root in this directory. You then can access it through a file manager, like Material Files for example, and send files and folders back and forth. In Material Files you can save the server address for future use.

I use Airdroid! It's free and works very well

X-plore on android can give file access via Web frontend in paid Version.

With that you can drag and drop files if that's what you're looking for.

Croc or syncthing depending on what kind of experience you are after. Syncthing if you want to have a shared folder like expert. And croc if you just need to send something. Croc has an app on f-droid, and syncthing is on the app store. Both are open source and pretty for excellent in their own right.

samba. share a folder on pc, and on your phone use a file manager that can access smb folders in your local network, then just copy or move from or to that folder. bit of a hassle to set up the first time, but makes things more convenient in the long run.

My go to hack was quickly running a python http server and connect to it. I can't remember what the command was exactly. Something like python -m http.server or so, then connect to the ip from my phone, heh.