Don’t worry about the Macrium Trim. SSDs don’t need the kind of optimization that an actual platter does. If Macrium did not come with your Samsung 850 (it didn’t with mine, I got Samsung Magician), I would just use the manufacturer’s utility software to keep the drive optimized. Defragmenting is mostly pointless. Basically, it uses caches etc. to reduce writes. (SSDs typically can do more reads than writes). Unless you are doing heavy data base stuff with constant writes, I wouldn’t worry about the effect on the life of the drive.
I did see a report on ‘life of SSD’s put out by a tech site that ran an experiment on several different brand SDDS- and the results they got were insane- over a petabyte (sp?) which is huge- that was with constant writing to the drive- and it took many years to compelte the test- some drives didn’t last quite that long, and suffered slowdown but only like way after the manufacturer’s estimated length of life for the drives-
I do loads of photo post production processing- which has lots of writes- I beleive- but I don’t think it owudl even come close to what the test was doing per day-