Buying Bitcoin in Germany/Europe

I found a website bitcoin.de (the fee for buying should be in total ca. 1% of the amount shared between buyer and seller)

I am also aware of tax if bitcoin will be sold before 1 year time. After 1 year there will be no tax on it.

Anything other in terms of regulations in Germany, Europe, tax etc to look for?

Is 1% on buying a decent rate? By Revolut it was way higher (few percent depending on plan) and there was no transfarable wallet possibility.

Also saw that coinbase is not supported in Germany, anybody knows why?

What other trading sites are recommended? What other to keep in mind?

Thanks,