@jonas I totally understand your decision and agree with your points.
For sure I absolutely have no problem with a donation or whatever you may call the fee you would like to receive as compensation for your time, work and effort.
I am used to show my appreciation every now and then by a donation for projects I like and frequently use their software. So I would for Strawberry too. But having the only option for a Patreon subscription and nothing else is like a showstopper for me - and as I understand several of the other comments they think somewhat the same.
So if you would give more options than only a Patreon sub I am sure way more folks would be willing to give you financial support in return.