Setting a default "SERIAL PORT" for a serial port device in "LINUX"

Question

I am Using a Python to access a serial port from ubuntu 20.4. I send and read data from the Connected serial port.

The code looks like :

import time
import serial


ser=serial.Serial("/dev/ttyACM0",115200)


ser.write(b'\xFA\x0B\x1B\x00\x00\x00\x00\x00\x00\xFB')

while True:
    try:
        #ser.write(command)
        s2=ser.read(10).hex()
        print(s2)
    
    except KeyboardInterrupt:
        ser.flushInput()
        ser.flushOutput()
        ser.close()    
        break

The issue is, whenever I try resetting the hardware device the "COM Port" Jumps to a new "port". So I need to manually change the port in the code frequently.

Is there a way to set a default "COM PORT" in Ubuntu for a serial port device (or) is there a way to automatically detect the "COM PORT" by my program!?

The thing I tried is:

import serial.tools.list_ports
import serial


print('Searching for ports...')
ports=serial.tools.list_ports.comports(include_links=False)
for port in ports:
    if port.device=="/dev/ttyACM0" or port.device=="/dev/ttyACM1" or port.device=="/dev/ttyACM2":
        ser=serial.Serial(port.device)
        break

if ser.isOpen():
    ser.close()
ser=serial.Serial(port.device,115200)
ser.flushInput()
ser.flushOutput()
print('Connected to :'+ser.name)

But this code doesn't provide the required output. The code sometimes doesn't select the correct "COM PORT".