"Electrum starts" test step is broken on Buster

I’ve been so used to see the “Using a persistent Electrum configuration” fail since months that I did not notice that it failed much earlier on Buster than on Stretch:

on Stretch, it fails to connect to the Electrum servers (known issue wrt. the version we’re shipping)
on Buster, it fails at the “Electrum starts” step: Dogtail finds no “electrum” application when the “Electrum - Install Wizard” dialog is displayed; I’ve quickly tried the obvious, i.e. asking Dogtail to look for “electrum” and “Electrum - Install Wizard” instead, but none of these work

Attachments

recommended-packages.txt

Related issues

Related to #16281 (closed)
Related to #9732
Blocks #16209
Blocked by #16421 (closed)

Original created by @intrigeri on 16969 (Redmine)

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