How can I give my users remote access to the my PC

I am a new Linux user. I installed RedHat Enterprise Linux 8.2 on my PC. I created a user account for example "USER1". My question is how can I give my USER1 access to the PC if he wants to log in remotely? The target is as root I will install software and the USER1 can also use the software in parallel with me.

Thanks for your help.