You've stated a number of times that the COVID vaccine is safe and effective despite the growing evidence of harmful side effects. You may not have used the tagline of safe and effective but said something that is equivalent.
And yes, I'm well aware that you put the caveat that no vaccine is 100% safe and effective and haven't gotten a booster since the first round. That still doesn't change that it is your opinion based on personal evaluation rather than objective facts.
The vaccine would have needed to go through all the standard clinical trials on the same established timelines along with the abundance of historical data to show beyond any doubt like every other established vaccine to state the possibility of developing side effects is negligible. Then it could be stated as an objective fact that it's safe and effective. Given there's enough evidence to make a case either way it can't be objectively presented as safe/effective or not; only opinion based on personal evaluation.