(This is the most recent thread I remember on using older OSes. It could help people like the OP, but not the OP since …)
I recently found out about a Chrome based browser Supermium for older machines. Supports MS-Windows XP thru 10 in 32 and 64 bit versions.
I have tried it out on 7-32 bit and it works, etc. OTOH, it’s original Chrome and I prefer better takes on it like Brave.
If you really need to have an up-to-date browser on an older machine, are behind a good firewall, etc. This might be an option. Just be sure what sites you visit, etc.