Guys i would try to do an official run but i have a problem. unfortunately I can't show an RTA timer on stream because i will stream from PS5 and i don't have a good pc for streaming the screen of console. How can i submit my RTA time without showing directly on stream?

You can time it off-screen or time it based on the video. Generally it should be accurate either of those ways, although if there's issues with the recording it might not be, so it's better if you can run a timer when you do the run, even if it's not on stream. It's also not the main timing method on console so it's not a big deal