Every PS5 player who wants to compete and doesn´t have a pc friend or pickup knows this problem i guess. But there is a way you can compare and find out your dps by yourself without depending on someone uploading a log from you with your best run randomly(which will almost never happen).
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First record any boss you want via Share Button to compare rotations, uptime and dps with other top ranked players later.
Go to fflogs(website).
Click on your aimed content(for example dungeons/tender valley), there chose ranking lists.
Now go to the filters and chose your class(for example pictomancer) and boss damage. All the best parsed players of your class are listed here from best to worst now. Chose the best player here.
On that players page now change "Bosses and Trash" to one of the bosses(the one you recorded on your PS5). You will see only the boss fight now with the dps of all partymembers. In that list(4 players) chose the player with the class you want to compare the dps with(in this case for example pictomancer).
The next page shows you the whole rotations and uptimes, so as damage done and dps of only the player you want to compare with.
Now what you do is check your recorded videos time from first hit to last hit and match(cut) that time on the players page so that it has the same parse/log time.
Now all you have to do is counting how often you used your skills, calculate your average dmg on every skill and how all that matches with the player you compare that with. If it matches perfectly or similar, then you know that you did the same or similar dps.
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I know, first it looks a little complicated, but if you get used to fflogs or are already, then it´s only a thing of some minutes preparing everything and then only the video analysis will take some time.
My experience with uploaded logs as a PS5 player is also very bad, even though there are a lot of players uploading logs every day in the rankings, the chances that someone doing this with you in that group are still kinda low. So you will propably have only very little logs and by a high chance not your good runs in your private page registered over a longer time.
The above explained method though makes it possible for every PS5 player to just record their best boss run and compare it with others whenever they want without having to spam a lot of runs to rely on someone randomly logging you.
This way you can atleast get better or have some self-affirmation until there is content again people upload more logs from.
Also another good thing about this method is it is private and you don´t release other peoples names and statistics. You can also hide your logs on fflogs if you don´t want unwanted logs there to be shown(they are still showing up on your private page though.). This requires to have an account there though.