Clearly Microsoft don’t monitor these posts as this query started November 2023 and nothing done about as you say one of the most common features - I downloaded the new Outlook in May for about 2 hours - discovered the missing feature which made it unusable for my work so returned to the original version
I receive leads by email with the perspective clients email address - I need to copy and paste that address into a new email to send the quotation - relieving on retyping the new address leads to often to undeliverable quotes
Clearly nobody at Microsoft understands how the product is actually used - bad business practice