I subscribe to youtube videos by ‘the deal guy’ - recently he did a video about Walmart and said they are redoing walmart.com but it’s no where near done and will still be iffy for a couple of months, but when it’s done it will be much simpler to use.
Are you using an older computer out of nostalgia, or out of economic necessity?
Actually I have more than one computer online, nut I was still using a Dell GX-110 Pentium III with Windows XP Pro up until about 6 months ago, because it had a lot of my self-created material on it for over 15 years, as well as the software programs that no longer worked in the advanced computers and OSes. But now I've gone ahead without it.