No motel microwave is “smart”. No commercial kitchen is going to have the line cooks installing “apps”.
BUT BE AWARE that commercial items have different requirements and tradeoffs! You need to research them before buying. Some may matter to you, some may be a safety issue, some may be technically or actually illegal to run at home.
For example, commercial ovens may look similar to your home oven, but have zero insulation anywhere and NOT be designed to be installed next to anything except solid metal.
But commercial and used commercial can be great. You can still get zero smarts devices, like microwaves with literally no computers in them, just a timer dial.
You can also import many from the USA, but you’d have to check power requirements very carefully. Commercial equipment is often available in 240v in the USA but it may not be self-switching.
But be aware that commercial dishwashers work - but even if you don’t get a massive Hobart machine that they’re designed for speed, not energy efficiency or silent operation.