I have an SD card formatted as ext4 for use with SteamOS and EmuDeck. I want to add files to this SD card from my Windows 11 PC using a SD to USB adapter. Most of the the ext4 programs I've found only support reading without writing. WSL2 doesn't support mounting USB drives. I can't switch my drive format to NTFS as it's not compatible with EmuDeck.
How do I write files to an ext4 partition on a USB drive in Windows 11?
Note: This differs from How to read ext4 partitions on Windows? which only covers reading from ext4 partitions. The linked question was also asked in 2009, meaning several of the answers are outdated and no longer work.