sha256 checksum for my dpkg intel-microcode_3.20241112.1~deb12u1_amd64.deb doesn't match Debian website checksum. Worry?

I believe this is the right way to confirm package integrity -

$ sha256sum /var/cache/apt/archives/intel-microcode_3.20241112.1~deb12u1_amd64.deb
5ae98379ad2ca170ab4808d2e78e86560a6976264557a3f26c8829ed45aa33bd  /var/cache/apt/archives/intel-microcode_3.20241112.1~deb12u1_amd64.deb

However the Debian website page https://packages.debian.org/sid/amd64/intel-microcode/download with the title *"Download Page for intel-microcode_3.20241112.1_amd64.deb on AMD64 machines"* lists

Exact Size		7107380 Byte (6.8 MByte)
MD5 checksum		b132ba25e76a0362993eeacac0d26275
SHA1 checksum		Not Available
SHA256 checksum		6aaeef4e106a983b88c8ddec99d105e91064037ead83cc6b35dd1e6d675df485

Also, the size is different

-rw-r--r-- 1 root root 7109172 Dec 18 05:46 /var/cache/apt/archives/intel-microcode_3.20241112.1~deb12u1_amd64.deb

Obviously if the size is different then the checksum will be different, but I checked the checksum before noticing the size. Is there some innocent explanation for this?