Greetings,
Assuming the battery is fully charged and in good shape, start by removing the lens and card from the camera. Turn it on and see if the behavior persists. Following this, you can perform a full settings reset and again, retest.
The last thing to try would be moving the articulating screen in out from the body and tilting it. You are checking to see if it works when positioned at different angles. If the behavior continues, I'd contact Canon and see about sending it in for evaluation. The camera was released in 2019, you should have no issues getting it serviced if necessary.
~Rick
Bay Area - CA
~R5 C (1.0.6.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10, 430EX III-RT ~DxO PhotoLab Elite ~DaVinci Resolve ~Windows11 Pro ~ImageClass MF644Cdw/MF656Cdw ~Pixel 8
~CarePaks Are Worth It
