Solidres restaurant management

Hello,

My client is looking for a solution for his restaurant so that customers can book online.

I've already done his site on Joomla 4 and wanted to know if using your solution, I could simply use the booking function, without necessarily using the online menu or your templates etc?

And is your component compatible with Joomla 5?

And another question sorry, with this solution, my client have to make all the booking with Solidres ?

I mean, actually, the take booking by phone and write that in a real book. So if we install SRM, my client will have to book only with the website ?