I have a random views that showing on the site front page, I am wondering if I signup with cloudflare, how can I let the front page view keep rolling randomly or the cloudflare will just cache the views for a day ?

I use the default responsive grid for the view, but its not responsive on browser and mobile, am i possibly missing something ? Drupal 10.51 ,
I am using the bartik theme , it's not responsive on desktop and mobile both.
I change to Olivero theme, it's responsive on mobile but not on desktop
I tested on Chrome and Edge both on desktop.
If you have experience with this, please advise, Thank you.

I want to change the role of a user when he/her purchase a commerce product.. I did this in Drupal 7 via rules easily . but in Drupal 10 and latest rules, I can't find the part for this . am I missing something or is there other way to do this in Drupal 10 ? Thank you

I want to have different set of menu on the address of www.abc.com/subfolder. so user will see different menu on www.abc.com and www.abc.com/subflder , is there a module can do this ? Thank you.

How to make a field available for authentic user to enter content , but after node saved, the field content only visible to the author and admin ? Thank you