A family of Microsoft relational database management systems designed for ease of use.
Hi BioBC,
Thanks for posting back.
I have also tested from my side, I'm afraid Project Web App cannot set specific time with the way as you describe. Sorry for the inconvenience.
Regarding the question 1, it's not available to set up resource pool in SharePoint. Project Web App is better to handle the situation about a project manager can't use a resource if it is already booked in another project.
For the question 2, if you create the tasks in SharePoint task list, you may filter the column to show the tasks assigned to a specific user.
To sum up, Project Web app is more suitable for the scenarios you mentioned, but it also has some limitations which may not fully meet your requirements. Really sorry for the inconvenience.
Given this situation, I recommend sharing your valuable feedback to Project UserVoice.
UserVoice is a specific platform where developers can know which features are important to users. This is the best way to let the developers know your requirements and suggestions, help to improve the product and make it better for you and others.
Thanks for your understanding.
Best Regards,
Tina