Help choosing between Catalina and Tahoe

So i have a thinkbook machine downgrade from Tahoe to run macOS Catalina since i love the elegant of it, but i still need app support in future, and i also do code, so i dunno if i should stay on Catalina for few months then to Tahoe or not, and Tahoe is maxxed out my system usage sometimes too. So idk, help me