TRIM and OS Real Estate Needs

In the Tutorial about the TRIM function I learned a lot about how TRIM works. To keep from cluttering the tutorial with tangential questions I'm posting here to further learn about laying out my SSD. I haven't used SSDs before this build so I am finding out a lot more about them............
It appears from all this information (and Thank You hdmi for laying everything out.) that if one has a large SSD, mine is 1TB with 3 OSes (eventually adding Linux) it is best to allow the OS to access the whole drive.
I had planned to keep images of each OS at its state just after all drivers had been installed in a separate partition on this SSD so I wouldn't have to keep up with that elsewhere. Reading this though it looks like I'm giving each OS fewer options to perform TRIM functions since each OS partition at present doesn't have access to the maximum amount of blocks. This is what I have done on HDDs but it may be better to partition the SSD to allow the OSes to completely occupy the space.
If my rambling is correct then, the bigger the SSD the longer it will last (at least theoretically) provided you give your OS the greatest access possible?

@Leo625

Here's ten points just for filling out your computer specs.

Why three and soon to be four, OSes?






Here's some things that you may find useful...

I am dual booting Windows 10 & 11 and will add Ubuntu eventually. The empty partition will hold images.