Help needed Configuring Thunderbird

Can anyone point me to clear, simple instructions with examples on how to set up-configure thunderbird mail client on my PC running Debian 10+ -11+ ?
I think I might need a plugin written for it, so can anybody direct me to any site to find a capable developer ?

Could you please explain, what your issue is?

Agreed. Thunderbird sets itself up quite nicely. Evolution is nearly as capable as well.

I guess my question would be what’s missing in Thunderbird that you can’t set it up?
this page may be of help if thunderbird is not installed.
how to install thunderbird

Sorry for the confusion.
The setting up of thunderbird is separate from the plugin development.