Thanks for your feedback!

chmod 0755 /home/jhoneA84
chmod 0644 /home/jhoneA84/.bashrc
chmod 0644 /home/jhoneA84/.profile

source: https://stackoverflow.com/questions/49202275/permission-denied-when-starting-bashrc-on-ubuntu-on-windows

in the file /home/ortollj/.sage//jupyter-4.1/jupyter_notebook_config.py, i added the line:
#——————————————————————————
# NotebookApp(JupyterApp) configuration
#——————————————————————————
c.NotebookApp.use_redirect_file = False

and in the file ~/.bashrc I added the line, after installing Chrome Browser in W10:

export BROWSER=’/mnt/c/Program Files/Google/Chrome/Application/chrome.exe’

(not Program Files (x86)/ for me,

my chrome.exe is located in Program Files/Google/Chrome/Application/)

and now when launch my windows shortcut Jupyter_lab is lauching ;-).
Thank you very much Sandy Scott.

# Configuration file for jupyter-notebook.

#——————————————————————————
# Application(SingletonConfigurable) configuration
#——————————————————————————

## This is an application.

## The date format used by logging formatters for %(asctime)s
#c.Application.log_datefmt = ‘%Y-%m-%d %H:%M:%S’

## The Logging format template
#c.Application.log_format = ‘[%(name)s]%(highlevel)s %(message)s’

## Set the log level by value or name.
#c.Application.log_level = 30

#——————————————————————————
# JupyterApp(Application) configuration
#——————————————————————————

## Base class for Jupyter applications

## Answer yes to any prompts.
#c.JupyterApp.answer_yes = False

## Full path of a config file.
#c.JupyterApp.config_file = ”

## Specify a config file to load.
#c.JupyterApp.config_file_name = ”

## Generate default config file.
#c.JupyterApp.generate_config = False

#——————————————————————————
# NotebookApp(JupyterApp) configuration
#——————————————————————————
c.NotebookApp.use_redirect_file = False

## Set the Access-Control-Allow-Credentials: true header

ortollj@DESKTOP-K30FLRP:~$ sage –notebook jupyterlab –generate-config
┌────────────────────────────────────────────────────────────────────┐
│ SageMath version 9.2, Release Date: 2020-10-24 │
│ Using Python 3.8.5. Type “help()” for help. │
└────────────────────────────────────────────────────────────────────┘
Please wait while the Jupyterlab server starts…
Writing default config to: /home/ortollj/.sage//jupyter-4.1/jupyter_notebook_config.py
ortollj@DESKTOP-K30FLRP:~$

but what does he mean by : then change the following line: c.NotebookApp.use_redirect_file = False

remove the # ?

here below is the content of the file :jupyter_notebook_config.py

# Configuration file for jupyter-notebook.

#——————————————————————————
# Application(SingletonConfigurable) configuration
#——————————————————————————

## This is an application.

## The date format used by logging formatters for %(asctime)s
#c.Application.log_datefmt = ‘%Y-%m-%d %H:%M:%S’

## The Logging format template
#c.Application.log_format = ‘[%(name)s]%(highlevel)s %(message)s’

## Set the log level by value or name.
#c.Application.log_level = 30

#——————————————————————————
# JupyterApp(Application) configuration
#——————————————————————————

## Base class for Jupyter applications

## Answer yes to any prompts.
#c.JupyterApp.answer_yes = False

## Full path of a config file.
#c.JupyterApp.config_file = ”

## Specify a config file to load.
#c.JupyterApp.config_file_name = ”

## Generate default config file.
#c.JupyterApp.generate_config = False

sorry but I still meet one last pb, each time I try to ./sage_nb.sh
I have to make a copy paste of the http with the tocken in a browser to launch JupyterLab

Start : This command cannot be run due to the error: The system cannot find
the file specified.
At line:1 char:1
+ Start “file:///home/ortollj/.local/share/jupyter/runtime/nbserver-141 …

and in fact I do not actually see a file that begins with
nbserver-141 but rather nbserver-1441-open.html

ortollj@DESKTOP-K30FLRP:~$ cd /home/ortollj/.local/share/jupyter/runtime
ortollj@DESKTOP-K30FLRP:~/.local/share/jupyter/runtime$ ls
nbserver-1209-open.html nbserver-1441-open.html nbserver-1672-open.html nbserver-1902-open.html notebook_cookie_secret
nbserver-1209.json nbserver-1441.json nbserver-1672.json nbserver-1902.json
ortollj@DESKTOP-K30FLRP:~/.local/share/jupyter/runtime$

see my last comment (click on see more comment) on
https://ask.sagemath.org/question/53294/installing-optional-packages-infinite-loop/

someone had the same pb as mine on
https://stackoverflow.com/questions/62814002/start-this-command-cannot-be-run-due-to-the-error-the-system-cannot-find-the

ortollj@DESKTOP-K30FLRP:~$ jupyter notebook –generate-config

Command ‘jupyter’ not found, but can be installed with:

sudo apt install jupyter-core

ortollj@DESKTOP-K30FLRP:~$ sage jupyter notebook –generate-config
/home/ortollj/sage-9.2/local/bin/python3: can’t open file ‘jupyter’: [Errno 2] No such file or directory
ortollj@DESKTOP-K30FLRP:~$

do you have any idea what I need to do ?