I have a 4090 and skipping 5XXX series. So far my 4090 is running everything good at 2k. Not until I have a 4k 240hz Oled I don't think I would need to upgrade in a while. Unless AAA titles start to get demanding at 1440p.
Waiting for this monitor to go back in stock. Was debating on this or the LG but the Asus one has better brightness so that wins it for me hands down. Sad that it does not come with HDMI 2.1 like the LG one but I don't plan to play consoles so not really an issue for me.