The final dāl with ḍammah in «أَعْبُدُ» is moving in continuation, so there is no final qalqalah. If you stop there, it becomes sākin and a qalqalah articulation is required.
The qāf in قُلْ is also vowelled; do not bounce it as if sākin.
The letters are ق ط ب ج د, but qalqalah is triggered by their being still, not by their identity alone.
Opening interactive controls...
Qalqalah: a vowel versus a stopping consonant
Al-Kāfirūn and An-Naṣr: Applied Madd, Idghām, Ghunnah and Waqf
The final dāl with ḍammah in «أَعْبُدُ» is moving in continuation, so there is no final qalqalah. If you stop there, it becomes sākin and a qalqalah articulation is required.
The qāf in قُلْ is also vowelled; do not bounce it as if sākin.
The letters are ق ط ب ج د, but qalqalah is triggered by their being still, not by their identity alone.