Google the product name and Linux. If nothing turns up, you need to find the name of the SoC / processor and google that. Find out if it’s supported by Linux and what other people did to install Linux. You might need additional hardware though, like a serial or JTAG adapter and a soldering iron. Plus the required expertise. And I must warn you, that thing has 1 GB of RAM and 256MB(!) of flash storage. You won’t be able to do much with those specs. Like a slow FTP server or one small website or a few other tiny services which don’t use a lot of resources.

I have a similar tv box running on rk3328. You’ll need to flash the rom and put armbian on it. Search by model and you’ll find some guide on armbian forums. Mine had 4gb ram but uses only about 600mb running my hubzilla server on docker. And 30gh storage is decent for small projects.