Article for those who dont want a video: https://www.gamesradar.com/games/final-fantasy/after-13-years-a-new-version-of-final-fantasy-7-is-replacing-the-current-version-on-steam-and-square-enix-hasnt-explained-whats-different/
Steam: https://steamcommunity.com/games/39140/announcements/detail/514107648813039663
Square Enix has announced a brand-new version of Final Fantasy VII for Steam. This is not a patch. It’s a replacement.
The existing release will be renamed FINAL FANTASY VII 2013 Edition, while a new version becomes the default Steam listing. Existing owners get both versions for free but save files will NOT be compatible between them.
I would say depends on your preferences
By today’s standards, old 7 gameplay, graphics and story will seem dated.
I am unable to play the newer ones, but from what little I have seen it seems to “feel” better when you see and know characters from the original.
I have played and finished old ff7 and if you don’t mind reading everything, some grinding unless you are going to for the secret stuff ( which is heavy grinding) it should be a “smooth” experience once you get to grips with the game systems, graphics and gameplay - and yeah, It can feel difficult in the old one to get into but I found the payoffs were engaging, had moments of emotional resonance and generally felt satisfied by the end - but that is because I allowed myself to be engaged with the game world.
That is all up to personal taste, as I know there are games that have had a stronger effect on me, but I also understand why FF 7 is rated the way it is.