Will that matter?
As long as its not the latest Beta then is ok, coz latest Beta firmware become different ST, not compatible with old ones. But you can update to the normal latest version, no issue. I don't remember what are the updates with their latest version.(not Beta)
When clicking on the Apex Legends picture and it shows what it does in the video, "ApexL-Hip-P4.2". So am i all good now?
Yeah, you will be using PS4 config. It's because in the video he generated PS4 Config from Manager, you can generate Xbox too, so when you click on the picture it will show X1.1. This is what I use (Xbox ST 4.2).
Also the video states "these steps wont effect your other XIM config's", so if i normally use Titanfall 2 for a config, do i drop that and use the PS4 version? Or make a brand new TF2 config and it'll be able to take advantage of 4.2?
You may treat the XIMMR you downloaded as a library with the books, so those you previously taken still with you with no changes, the new ones you take - is the new ones from that library.. lol..
In other words - what you generate now in PC manager - will be PS4 4.2 or Xbox X1.1 configs (Apex and TF2, other games not sure). So if want take advantage of it - just rename those you newly generated as 4.2, so you will know which is which easy.
My XIM for example now have
Apex:
Xbox - 4.2 (X1.1)
Xbox - 4.3 (X1.2)
PS4 - 4.2
PS4 - 4.3
TF2:
Xbox - 4.2 (X1.1)
Xbox - 4.3 (X1.2)
PS4 - 4.2
PS4 - 4.3
So I can cycle them and test whenever I need it to, or if someone shared config with that specific version - I will just paste code into it..
The season 10 in Apex was quite stable for configs, was used only one config for the whole season, it worked great. Only some minor adjustments and DPI changes, but that was not related to XIM, own PC usage without changing DPI here and there. Not sure, maybe its because I randomized the values when share configs??!! (XIM bros for sure will say its not related, hahaha)