I feel the HubSpot ‘membership sign in’ form / page that is used in Hubspot templates requires more customization options simialr to existing drag and drop options on other Hubspot pages and forms.
For example I wished to move the location or increase its prominence on the page of where it says “Don’t have an account? Register here.” as unfortnately users without an account assumed the login was a registration form.
After trying many things I can not improve this and had to remove the membership functionality from certain processes on the website as users were contacting us to say there was a ‘problem with them creating an account’ as they were instead trying to login without an account made yet.