WindTerm: WindTerm_2.5.0_Windows_Portable_x86_64
Vim: 9.0.1420
SSH： OpenSSH_9.3p1, OpenSSL 3.0.8 7 Feb 2023
Linux: ManjaroLinux 22.1.0

After connecting to the remote Linux SSH, use vim to edit the file and save it. When the file is reopened, this special character 'ESC[?4m' will be displayed at the last position of the cursor.

edit text.txt:

reopen:

This character will be deleted along with the deletion of this line of characters.