How to Integrate Slack & WhatsApp on Lubuntu 20.04 Guide
Hi! The Tutorial shows you Step-by-Step How to Install WhatsApp and Slack Desktop Chat Messenger Client in One App on Lubuntu 20.04 Focal LTS GNU/Linux.
And to Install WhatsApp & Slack Client on Lubuntu 20.04 you dispose of some cool Alternatives:
Especially relevant: currently Ferdi is the only completely Free alternative, and so I listed them in order of my Personal Testing Preference.
WhatsApp & Slack Client Lubuntu 20.04 Installation Guide