The thing about PBP is that you don't need to decide now. Just plan an SR series next year, and ideally have a go at the Flatlands 600 this year, and then decide next June. Unlike LEL, where you need to pay your deposit in January, you don't enter PBP until you have your qualifiers validated.
Of course, you might want to book accommodation and travel before you have qualified and been given a place. Why not do that anyway? Even if you haven't managed to get a ride on PBP, you are in France with your bike, so go for a ride. Just getting there and watching the start could be an interesting experience for 2023. Warning: watching them finish might, of course, put you off completely.