Canon EOS 250D Advanced User's Manual page 230

Movie Shooting Time Limit
The maximum recording time per movie is 29 min. 59 sec. Once 29 min.
59 sec. is reached, recording automatically stops. You can start shooting a
movie again by pressing the <A> button. (The movie will be recorded as a
new movie file.)
When downloading movie files exceeding 4 GB to a computer, use either the
z
EOS Utility (= 484) or a card reader (= 487). Movie files exceeding 4 GB
will not be downloaded if you perform image download with the function of the
computer's operating system.
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