Admin Needs feedback and recommendations!!

I really need some help and feedback guys....
I bought a new machine, a Lenovo Legion Gamer, specifically for the graphics, memory and space.
Of course it came with lots of bloat, including much they want to sell you or give you free trials for, which 99% of that I care nothing about.
I already bought and installed the newest version of PS Elements, but no way to open my docs, or PowerPoint files.
My dilemma is, do I go with this expensive subscription route, or would buying 2019 home and student version for 150 bucks be plenty of what I need.
I have messed around in Canva and google slides, but all seems so complicated right now, and limited as well.
There is a person specifically that sells planners etc... and none of the PowerPoint files will open for me, and 2 other ladies I have spoken to say the same.
I found this person uses the "newest versions" of PPX etc, which I assume is the cloud based, and I also determined they are using a Mac. We do not associate any longer, due to reasons like this, so can not ask, I determined this by talking to the others and the experiences I AND they had with said.
I am sure many folks do you use Mac, altho pc's are the norm and more people are on them, so I am not really sure that was the problem, but am not certain.
In any case, this person is the only one I have ever had problems opening files from (and the other ladies said the same) so I am a bit worried that if I buy into the cloud based version, that other customers of mine may have those issues too.
SO! bottom line I would please like some feedback on this, should I go in the cloud, or buy my own product outright!
What are all of you using, and what are your experiences using cloud verses the other.....

Please vote and clarify your choice with experience and examples please.

well, more out of time and necessity, I got the sub, but I am already not real hoppy with it. 
Personally, I have never been found of apps etc, that want to connect to the net when they are supposedly installed on your pc.... and then there is the whole trust thing.... too many bells and whistles.... stuck for now, but may still be looking for alternatives to work with PPT etc.

Still want to hear your opinions