I had about 96k in stubs on ps5. I linked my accounts and got my inventory but did not get my stubs what do I do?

Log into the market website under both accounts. Look to see how many stubs are in each one. Stubs purchased on one account are not transferable to another. If the combined stubs (you'll have to do a little math) are not what you expect, then you'll need to submit a ticket, but if they are, then you'll need to figure a way of spending the stubs the way you want. Probably the easiest way is from the website while logged under the account that has them.

For the record, stubs earned in the game can be seen while playing on either system while linked, but not stubs purchased or stubs that come with the game as a bonus.

For example: I play on my XBox, but my PS is my primary account. If I were to buy stubs from my XBox, I would not see them when I played on my PS. The same is true the other way around.