Is it permissible to sit on a chair during Tarawih prayer when the Imam prolongs the recitation, due to pain in the heel of the leg, and then to stand for the rest of the prayer's pillars, or is it better to pray Tarawih at home with the ability to stand, due to the absence of prolonged recitation?

It is permissible to perform Tahajjud prayer while sitting on a chair if standing is difficult, and the worshiper is hoped to receive the reward of one who stands, as long as their sitting is due to an excuse. Performing Tahajjud prayer in the mosque is better, unless performing it at home leads to encouraging family members and their participation.