5G networks are mainly for mobile phone users. The use of computers is still based on fiber-optic broadband+gigabit line or WiFi.
By the way, the 5G network mentioned here now refers to 5G of 3G, 4G and 5G of mobile communication network, that is, the fifth generation mobile communication network, not the 5G band of WiFi. They are not the same thing. So I use the term "5G network" to distinguish them.
The 5G band of WiFi is only short-distance high-speed transmission, and the effective distance and wall penetration are poor.
The theoretical speed of 5G network is 10Gbps/s, which is indeed faster than the theoretical speed of the latest WiFi6. However, this speed is rarely reached in actual use (generally, the 100-megabit broadband at home now has little sense of existence except when downloading movies and games).
The current 5G is not as overwhelming as the previous 2G to 3G and 3G to 4G. It is uncertain when it will be popularized, and tariffs and signal lights may not necessarily replace the existence of wired broadband.
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Moreover, although the upgrading of computers is not as fast as that of mobile phones, it is not slow. If it's about games, it's almost time to update it in three to five years. (It's not impossible for the time being)
To say the least, even then, notebooks and desktops will definitely have corresponding 5G expansion cards and the like, so you don't have to worry about this problem at all, just choose according to your own needs.