adb: no devices/emulators found

[GITMichaelK]

Device info

Manufacturer: XIAOMI
Android version: HyperOS14
Custom ROM/rooted? no
Model: Redmi13

System info

Available disk space: 30GB
Operating system: Manjaro

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Describe the issue below.
On my computer, I installed the software and the companion-app on the phone. Developer options are granted, USB is for file transfer. Phone and PC connected by USB-cable-
Running the PC-program, I answered a bunch of questions

• connection: wired
• export: tar
• compression: 0
• hooks: no
• What to do: Backup
  This leads me to:

Couldn't find **srm**, a command provided by the 'secure-delete' package on Debian and Ubuntu. Secure removal of sensitive temporary files created by the script is unavailable - encrypting your disks is recommended.
Open Android Backup will install a companion app on your device, which will allow for contacts and other data to be backed up and restored.
The companion app is open-source, and you can see what it's doing under the hood on GitHub.
Companion app already downloaded.
Attempting to uninstall companion app.
Installing companion app.
IMPORTANT: If this appears to be stuck, check your device for any Play Protect warnings and press 'More details' -> 'Install anyway' to continue. The app is falsely flagged by Google.
adb: no devices/emulators found

Separately, I installed srm, but same issue.

How to solve this?