Arduino for STM32

Hi,
looks easy but do not work in my case.
After I install latest STM32_core it looks like on your image but there is no STLink to select, I am not interested to install STM32Programmer software, even after I install it it do not upload the code.
Before with older "core" I had STLInk in option to ...

Hi,
typically when I select STLink for upload code "port" is gray not active, in my case is active black just nothing is selected there.
Totally removed preferences.txt allow me to select stlink but:
If select upload at the status (right low corner) I see that there is STM32F103C, STLink,... and it ...

Hi,
I am sorry, it was obvious for me that if I mention Bluepill it point to STM32F103C8T6, I did not found any other bluepill's from STM.
Some update:
I flash bootloader again (by Rx/Tx and com4 appear) and easy I was able to upload code by bootloader but when I switch to STLink it does not switch ...

Hi,
I am new, please forgive me mistakes.
I begin to work with Bluepill and Arduino IDE, fresh instalation of v1.8.13 on fresh windows 7.
At the beginning I use bootloader and upload the code trough it (port COM4), recently I switch to STLink/v2.
It works well for couple of days. But here my ...