Should I try Returnal first?

I've been looking at trailers of Saros and think it looks great but I don't know if I'm willing to spend €80 on a genre I've never played before.

The only other Roguelike I've played is Deadcells and I loved it but don't think it's a fair comparison. However, Returnal is a part of PS+ Extra now, so would it be worth it to upgrade to Extra for €16 for the next 111 days and play Returnal first before pulling the trigger on Saros?