It does here
C:\Users\Bob2\AppData\Local\Temp\.arduinoIDE-unsaved2024127-12464-1syj54n.dqsuh\sketch_feb27a\sketch_feb27a.ino: In function 'void loop()':
C:\Users\Bob2\AppData\Local\Temp\.arduinoIDE-unsaved2024127-12464-1syj54n.dqsuh\sketch_feb27a\sketch_feb27a.ino:37:18: warning: jump to case label [-fpermissive]
C:\Users\Bob2\AppData\Local\Temp\.arduinoIDE-unsaved2024127-12464-1syj54n.dqsuh\sketch_feb27a\sketch_feb27a.ino:33:23: note: crosses initialization of 'float t'
C:\Users\Bob2\AppData\Local\Temp\.arduinoIDE-unsaved2024127-12464-1syj54n.dqsuh\sketch_feb27a\sketch_feb27a.ino:48:13: warning: jump to case label [-fpermissive]
C:\Users\Bob2\AppData\Local\Temp\.arduinoIDE-unsaved2024127-12464-1syj54n.dqsuh\sketch_feb27a\sketch_feb27a.ino:33:23: note: crosses initialization of 'float t'
C:\Users\Bob2\AppData\Local\Temp\.arduinoIDE-unsaved2024127-12464-1syj54n.dqsuh\sketch_feb27a\sketch_feb27a.ino:43:47: warning: this statement may fall through [-Wimplicit-fallthrough=]
C:\Users\Bob2\AppData\Local\Temp\.arduinoIDE-unsaved2024127-12464-1syj54n.dqsuh\sketch_feb27a\sketch_feb27a.ino:44:25: note: here```
Win 10, IDE 2.2.1 with verbose compiler warnings turned on in IDE Preferences