Change user UID and GID to 1000:1000 in Ubuntu [closed]

While my user has UID:GID 1000:1000 in my laptop (Pop! OS), a new desktop machine (Ubuntu 22.04.4)got the same user name with UID:GID 1001:1001 by default.This creates permission problems when working with an external disk that is frequently connected to either machine.According to what I have read (eg https://www.cyberciti.biz/faq/linux-change-user-group-uid-gid-for-all-owned-files/), changing UID:GID in the desktop (Ubuntu 22.04.4 LTS) machine is easily done with

usermod -u 1000 foogroupmod -g 1000 foo

My concern is: is 1000:1000 reserved in Ubuntu? Might I be creating a trouble using these UID:GID numbers?