Ok I will check that, my Desktop is a Linux Debian 13 with:
adb --version
Android Debug Bridge version 1.0.41
Version 34.0.5-debian
Installed as /usr/lib/android-sdk/platform-tools/adb
Running on Linux 6.12.74+deb13+1-amd64 (x86_64)
heimdall version
v2.1.0
and I am following the installation method from the link below but it is maybe not accurate for this phone, I will continue to search for the proper way to install it. I have time to explore, and test various options. And maybe one day the A53 5G will be a supported device. Thanks for your help.