LinkedIn is a must for everyone in business- especially in b2b. It was different before 2020y
Now everybody wants to have data points.
When potential business partners meet you and get curious? They go to LinkedIn and want to see what you post.
When they have a problem? They ask search engines and AI for solutions. Where does Ai he the data? From your posts.
When they think you can solve their problems? They go to LinkedIn and want to verify their gut feeling. Do you really post about what they need?
When you are not on LinkedIn, you ignore human nature and close less deals.