For a long time the standard was, contact your S1 support and receive a removal tool. The sweeper can still be found, but only old versions among rare people that held onto it, and it does not always work. This works sometimes:
SentinelOneInstaller_windows_64bit_v22_2_4_558.exe --clean_only --dont_preserve_config_dir --dont_preserve_agent_uid -t xyzpdqxyzpdq
You’ll want the latest .exe, not the above version. And if this is not an agent from your own console, in the place of xyzpdqxyzpdq, try “1”, or omit the -t … altogether. Sometimes works outside of safe mode, sometimes works inside.