@augustya 

Hi, thanks for posting question on our community.

After confirmation, Multicast DNS (mDNS) packets are typically used for device discovery within a local network, primarily for discovering and managing devices between Apple products and some IoT devices. TP-Link products do not need to process these mDNS packets, they simply need to forward them to the corresponding devices. All of our TP-Link products support forwarding mDNS packets to other devices within the local network. 
Typical use cases: 
Discovering/Configuring smart device in your local network.
Using Apple services like Airprint, Airplay, etc.

On the other hand, a small number of users may use mDNS for domain name resolution. TP-Link products cannot directly resolve the domain names in the mDNS requests, but they can forward these mDNS packets to the corresponding devices (if your devices support it). This way, you can still receive the results of the mDNS resolution.
Typical use cases: 
Using the device hostname such as test.local to visit the device. This succeeds if the device supports mDNS.
Using the device hostname such as test.local to visit the device. This fails if the device doesn't support mDNS.

  @John-Gilbert 

Above is also suitable for Deco series.

  @augustya 

Hi, as I know, not all the models support all features you mentioned.

You may check whether the  router model supports the features you required or not from its Specifications on your local official website, taking Archer AX80 as an example.