Solved
[PC/Origin] The Sims 4 Freezes when I Tab Out.
Product: The Sims 4 Platform:PC Which language are you playing the game in? English How often does the bug occur? Every time (100%) What is your current game version number? version 1.64.84.1020 ...
I thought I would let you know I managed to solve the problem.
My PSU wasn't providing enough power for my graphics card.
So, I had to underclock my GPU until I can get a new power supply.
For those who are having the issue I had and ended up finding
this post from a later date: https://www.wepc.com/how-to/underclock-gpu/
