Which router is suitable for a mobile workstation?

Question

network hardware

Conditions.
1. Large coverage area.
2. A large number of simultaneous connections.
Usage scenario.
A router is needed for a mobile workstation, for wireless access of various devices to video content with a bit rate of around 52 Mbps for 3-5 users
Wireless Internet access for ~ 20 clients + a guest network with a reduced speed
Work in different conditions. In nature, in the city, indoors. In the cold, in the heat, etc.
Wishes
Dust, moisture protection.
wifi ac.
power over ethernet.