Environment
Acer Aspire 4741G
Ubuntu 20.04.2 LTS
Arduino IDE 1.8.13
WifiNINA firmware ver. 1.3 (after installation of library)
Lesson
LEARN - Building Internet of Things Projects with Arduino IOT Cloud by Lee Assam
Setup
sudo snap install arduino
Board manager - install Arduino SAMD boards (32-bits ARM Cortex-M0+) by Arduino version 1.8.11
Library manager - install WifiNINA
in ubuntu
sudo usermod -a -G dialout $USER & reboot