[Shawnj2]

In 2023 yes but there are lot of in production systems designed in the past around older chip designs and old hardware in the real world with slower chips. For example a common low processing power network device you can still make easily today is an Arduino Uno with a network hat.

[nick__m]

the network "hat" use to be a full blown ESP8266, an mcu that is a lot more powerful than the arduino Uno !

[grishka]

Are you sure an Arduino has enough resources to establish a TLS 1.3 connection?