I have Manjaro XFCE on my Pi4 installed on an SD card. Is there a way to transfer an existing install (with settings, applications, users etc) to a new disk? E.g. Raspberry Pi OS has a “Copy to SD Card” utility, which writes the booted system to a disk of the user’s choice - very easy to use.
I updated the firmware so I can boot from USB, and I went a bit overboard and got an external USB 3.2 SSD (Samsung T7, 500 GB). As a quick test I installed Raspberry Pi OS on it, and can confirm it boots and launches programs really fast!
If I have to I’ll create a new install on the SSD, it’s not that big of a deal.