MagSafe charger? Using the charger that came with the MacBook Pro 14"?
Do you see a red or amber LED light on the MagSafe connector?
At what charge level is the battery? Is it 80% or close to it?
Do you leave the Mac plugged into power most of the time?
If the answer is a MagSafe connector with an amber light and the battery is at approximately 80% and you normally leave it plugged in most of the time. Then congratulations you just discovered a very nice feature where macOS tries to preserve the overall lifespan of your batteries. Ion-Lithium batteries do not like being charged to 100% and constantly kept at that level. They also do not like being drained completely. Excessive heat or extreme cold is also not good for Ion-Lithium batteries.
Click the battery on the menu bar and click Charge to Full Now. Run your MacBook Pro on battery more often. When it's charged actually unplug it and use the battery as it is designed. Going to lunch and your MBP could use some more charge? Plug it back in and unplug it when you return.
While you can turn off Battery Optimization that will result in the battery wearing out faster.
The setting is to be found in Settings -> Battery -> Battery Health click the tiny i in a circle to the right and turn off Optimized Battery Charging.