What does the statement "time is moving faster" mean? That subjectively somebody is feeling the passage of time as occurring faster? I am not. Although there can be a perception of time moving faster as you age, because each year, for example, becomes a smaller and smaller proportion of all of the time that you can remember. When you are five years old, a year is 20% of your lifespan, and probably more of your total remembered life. When you are 40, a year is only 2.5% of your lifespan. I have also read of an effect that time can appear to be compressed retrospectively when you are under high stress for an extended time period.
Sunlight was never yellow, even before Covid. It has always been daylight white and that is how our brains have evolved to interpret the daylight spectrum of visible light. What are they trying to imply by this claim? Did they not learn of Newton's experiment to split a white sunbeam into its component colours, thus proving that white daylight is the summation of different colours, including yellow? The yellow sun is an artistic convention, not physical reality. Sunlight takes on a golden, yellowish quality just before sunset, and just after sunrise, as it passes through a larger column of air to reach you. Photographers have long chased this "golden hour" as it provides what many consider to be the ideal light, and it is also frequently depicted in representational paintings.
I saw somewhere else on the internet someone making the claim about time being faster and sunlight no longer being yellow. It perhaps demonstrates that, since Covid, more people are willingly falling victim to collective delusions.