tax return in the Netherlands / permanent residence and taxation in Russia

Hello, my name is Evgeniya. I would be grateful for advice on how I can correctly fill out the Dutch tax return for 2020 with the following inputs: - lived (was registered) in Holland and received a salary in Holland for a partial reporting year (January - early February 2020) - I didn’t have a fiscal partner in 2020 - at the beginning of February 2020 I quit my job in Holland, left the municipality and went for permanent residence in Russia - I don’t receive any income in Holland, I’m not registered, I don’t pay health insurance, no household “ties” no. - I have two (not dual, but two) citizenships - Russia and the Netherlands. Question 1: should I indicate in the Dutch tax return 2020 any data about my new job and income in Russia - after leaving Holland? Will this affect the non-recalculation of the tax refund? At the moment, I filled out the Dutch return, indicating information only for the period when I was registered in Holland (January - early February 2020). I have not indicated any other income yet. Since the end of February 2020, I have actually been a tax resident of Russia and would like to make sure that I have provided everything from the documentary side to avoid double taxation. Question 2: I do not plan to return to Holland in the coming years. Do I need to continue to fill out a Dutch tax return in subsequent years, despite the fact that I am not registered, work or receive any other income in Holland? Thanks in advance, Evgeniyae.viknyanshchuk@gmail.com