@Dedzigs I don't have read the other links but I would say you should not spend money in the first weeks
The season is going on for 12 weeks and as you can see on your third picture you will get missions every week and the new week begins Thursday (for me around 2 or 3 pm here in GER)
When all weeks are the same as this week, the missions will give you 49 lvl points which around 5 lvl of the season pass (if you have a premium season pass)
So you can get around 59 lvl in 12 weeks with the weekly missions
Then you only need to grind around 41 lvl by your own if you go on and make all weekly challenges
If you don’t do the weekly mission you need to grind more exp
It is not a prove because I don’t have bought any skip but I think the increase in xp is connected the related season pass lvl so imho a skip in lvl will not stopping the exp increase per lvl point
In my opinion it is easier to grind the 40+ lvl in the low lvls of the season pass so spending money now to skip seems to me waste of money
Spending money to skip lvl would be more interesting in the last two weeks and then you cann see if you can do the grind or if you want to skip it to get all content of the season pass.
But this is only my opinion, if you think you want quick lvl 100 it is your money
I hope my opinion helps you