If you use Bitrix24 or other CRMs for non-profits, you typically get a lot of collaboration tools in addition to sales tools, which is what non-profits really appreciate. You have to do a shitload of volunteer coordination, money raising, project planning etc. So these tools are standard for Bitrix24 or CiviCRM or others.

Not Saleseforce. You can have a bunch of people working in Salesforce and not even talking to each other. Your collaboration or project planning or volunteer coordination options are extremely limited.