How to update without flash drive

Hey! So I just purchased a 2017 MacBook pro (2 thunderbolt ports) and was wondering how to update to Sequoia without a USB drive (since there are none available on the Mac itself) I’ve read that it’s possible but a little messy but I want to get the most out of my device. Everytime I run the installer it tells me to update to Tahoe which I’m aware is unavailable on Intel Macs.

If someone could help me it would be so nice

submitted by /u/gurlofanis
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