TapNoiseDictation is useful when speaking a first draft is easier than typing it. The keyboard remains useful for precise names, punctuation and corrections. You can combine the two rather than choose one permanently.
Set up a short test
Open System Settings › Keyboard and inspect Dictation, its language, microphone source and shortcut. Dictate a harmless paragraph in a supporting app, then read the result carefully.
Words that sound alike, product names and code identifiers deserve extra review. A fluent-looking sentence can still contain the wrong word, and automatic punctuation may not match the structure you intended.
Check where processing happens
Apple’s Dictation settings explain the processing and connection requirements for the current Mac and language. Do not assume every Dictation request is offline merely because another device or language supports local processing.
If you need to navigate the whole interface by voice, Voice Control is a separate feature. Dictating a paragraph does not automatically provide the same command system.
Keep the audio setup understandable
Dictation uses a microphone. TapNoise’s Quiet during calls can therefore pause typing playback while Dictation is listening, even though you are not in a meeting. That is expected microphone-based behaviour.
Try a mixed input work routine when drafting long passages. For poor microphone results, select the intended input device before troubleshooting the keyboard or sound theme.
Source: Apple: dictate messages and documents, TapNoise microphone detection.