next gen consoles giving an advantage?

A current gen console player can have advantage over a next gen console player with good PC monitor that has lower response and higher pixel density instead of a TV or use better headset with amplifier to focus high end frequencies for footsteps. Current gen still runs Apex at 45-60FPS average but with lower resolution scaling for sure.

I don't think they'll make a "next gen" console standalone version of Apex. More like "patch" upgrades for resolution 4K and FPS unlock to 60-120Hz then call it "Next Gen Edition". But even at 1080P resolution the draw distance pixellation is still good enough to see and hit distance targets when your face is 20cm from monitor anyway. At best they'll bring resolution and FPS to PC level, so not ground breaking.

Apex is more CPU dependent and not a graphical intensive game at all. Don't think they're going to add special effects to annoy people in a competitive game i.e. RTX or more particle effects. PC people already edit their graphics settings low to miniimise visual distractions already.

They haven't even announced any "next gen" console patches for 4K and above 60FPS for Apex. It will just play as backwards compatible game as usual on new consoles.

I would advise anyone to not sell their previous console when they receive next gen one. Just because an older gen game is "backwards compatible" there are still possibility of game breaking bugs that prevent game progression as it won't be perfect emulation, so better to keep as backup for your library of games.This is more specially the case for PS rather than Xbox.

Also faster SSD will load maps faster, but you still have to wait for last player to load map to start at same time. So no real storage speed advantage here. It might be good for say ranked mode where you get disconnected and want to reconnect to existing lobby session though.