Could symptoms of a permanent frog in the throat be linked to Covid and or the Covid vaccine

The short version: the evidence you retrieved is empty, so no link can be confirmed or ruled out.

The evidence block contains zero studies. That means there is no published research in your search results that addresses whether a persistent "frog in the throat" (globus sensation) follows COVID-19 infection or vaccination. This absence is itself meaningful. A plausible mechanism exists: the spike protein and vaccine-induced inflammation can disrupt the vagus nerve and laryngeal muscles, and post-viral inflammation is a known cause of globus. But mechanism is not proof.

Without any retrieved evidence, I cannot cite a single study, rate, or comparison. The gap matters. The question is clinically important and biologically plausible, yet the literature you found does not touch it. That tells you how little systematic attention this specific symptom has received.

My call: the evidence does not answer the question. Confidence: not clear — the gap is real, not a negative finding.