Hi Aspirant,
It all depends on you whether you want to attend online classes or not. It also depends on your school whether they have made it compulsory for non-attending students to attend online classes for now.
But as for suggestion, I would say that check your school's classes time table and see whether you can attend them if they are not intervening your coaching's or your own alternative methodology (I'm mentioning this since you have mentioned yourself as non-attending student), then it would be really beneficial for you to attend classes. It may give you a clear idea about your board syllabus and will be helpful during your board exams since schools mainly focuses and gives priority to 12th Board first.
Hope this clears your doubt.
Good luck!!!
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