General Discussion

https://en.wikipedia.org/wiki/2020_United_States_presidential_election
https://en.wikipedia.org/wiki/2024_United_States_presidential_election

In 2020, President Biden got 306 electoral college votes - 37 more than 269, the 50% point of the college. The states that put him over the top and were closest in percentage terms were:
Georgia: 49.47% - 49.24% = 0.23% difference (16 EC votes)
Arizona: 49.36% - 49.06% = 0.3% difference (11 EC votes) (0.31% in the far right Wikipedia column - rounding differences)
Wisconsin: 49.45% - 48.82% = 0.63% difference (10 EC votes)

In 2024, Trump got 312 EC votes. The states that put him over the top and were closest in percentage terms were:
Wisconsin: 49.6% - 48.74% = 0.86% (10 EC votes)
Michigan: 49.73% - 48.31% = 1.42% (15 EC votes)
Pennsylvania: 50.37% - 48.66% = 1.71% (19 EC votes)

So the crucial states in 2024 varied a fair bit. You mention winning all seven swing states, so I presume you're also including
Georgia: 2.19% difference
Nevada: 3.1% difference
North Carolina: 3.21% difference
Arizona: 5.53% difference

(the next 4 states in 2020 were differences of 1.16%, 2.39%, 2.78% and 7.12% (7.11% in far right column), for comparison)

5.53% is not "about the same" as 0.86%. Trump's margins in the crucial states were a little larger than President Biden's.

What do the people good with mathematics say about the difference between 2020 and 2024? I hope they had an argument, rather than just "feeling".