Missing Shopwar 6 plugins

we have now worked over 12 months to redevelop our website with the Shopware 6 version. Unfortunately, it is a drama that important plugins that were announced for spring 2021 are not yet ready. There are promises for spring 2022, but how reliable are they?
Who is similarly in a fix and has perhaps explored viable workarounds.

What is missing:
Customer-specific discounts
Bank reconciliation
Dunning system

michael müller