Few Hundred Device Tracker Entities

A little background.
I live in a small group of homes that backs a shopping center that has a Starbucks and a few cafe’s.
All have free wifi.
I am getting bombarded with device tracker entities from devices that are using the free wifi.
I know that I am getting them from my device_tracker.yaml file. The problem is how do I correct it.
Hassio is running on an unRAId server in a VM.
I am running a unifi usg, and vlans on the unifi system. Also have a guest set up as well.
Here is my setup .

####################################################
#                                                  #
#       DEVICE TRACKER - UNIFI                     #
#                                                  #
####################################################
      
#https://www.home-assistant.io/integrations/unifi_direct/
#device_tracker:
  - platform: unifi_direct
    host: !secret unifi_host
    username: !secret unifi_username
    password: !secret unifi_password

####################################################
#                                                  #
#              DEVICE TRACKER NMAP                 #
#                                                  #
####################################################

#https://www.home-assistant.io/components/nmap_tracker/
#device_tracker:
  - platform: nmap_tracker
    hosts:
      - 192.168.1.0/24
      - 192.168.20.0/24
      - 192.168.30.0/24
    home_interval: 10
    exclude:
     - 192.168.1.10 #My PC

Here is a sample of one of the entities.
device_tracker.android_2ec1f235f401fd8c
not_home
source_type: router
hostname: android-2ec1f235f401fd8c
is_guest: true
mac: 00:3d:e8:ef:04:8e
oui: LgElectr
site_id: 5da9f09d4039bc0d1f5abd55
is_wired: false
friendly_name: android-2ec1f235f401fd8c

Any help is greatly appreciated.

If you go into Configuration > Devices what integration do the devices belong to? Are all these devices in the unifi controller as clients? Is your guest portal secured? How is a coffee shops free wifi relevant here?

Am I right assuming you are in the same wifi as those other devices? If so Limit the ip adresses/ranges of the nmap tracker to the ones you are interested in.