So hopefully I'm doing this right! :) (I'm still new to some of this so haven't figured out things yet! I did ask this via Mastodon also, but wanted to add more detail to my answer!)
Is there a computer game, a moment in a game, a boss fight, or a specific moment that you would love to experience fresh with no prior memory of it?
Mine would have to be The Seat of Sacrifice fight in Final Fantasy XIV, one of if not my most favourite fights in the game to date.
The mechanics work so well and tie into everything that's been happening, and then that moment where <redacted> (I refuse to spoil it!) shows up to help and then leaves with I think what made me cheer SO MUCH the first time I did the fight.
The music, the song To The Edge has become one of my most played songs in my entire music library (alongside Endwalker - Footfalls and Shadowbringers) as it is quite frankly perfect for the fight. and when they revealed that Soken had been battling cancer and wrote it whilst in hospital...
I adore the fight all together, and cannot help but say the lines in the cut scene bit in the middle every time I do the fight, and will never ever get bored of it.
So what moments in a game would you love to complete again with no prior experience?
No Man's Sky in general. My first time playing it was absolutely magical.
I wish I could experience no man's sky as it is now with no previous knowledge of it.
Played it at release and I liked it and played the hell out of it, but now theres so much more going on and I feel like starting it again doesn't have that same luster to it.
Pathfinder was when I first played it. A lot of the launch issues were fixed, but it wasn't completely overwhelming with content like every other time since then I try to do a new playthrough.
The first few worlds I explored on No Man's Sky were amazing. Then after a dozen or so worlds they all started to feel the same and the magic faded. Definitely one that you can't roll back the clock in to experience all over again.