Tomb-Sweeping Day, do Buddhist immortals have to burn incense at home?

Of course. You can burn incense anytime, anywhere, "One Buddha can break all evil", burn incense and worship Buddha, "Everything is forgiven". You don't need to pick a date (for example, emphasize the auspicious day of the zodiac), choose a time (for example, emphasize when to go), look at gender (for example, emphasize that men can't), genus (for example, emphasize that dragons can't, chickens can't), and talk about attributes (for example, you can't be at home). According to the state (for example, women's physiological period, abortion, abortion, pregnancy or just gave birth to a child), you think of Buddha. If you can't solve this little thing, it's no use worshipping him!