Solved User Account on desktop

Open a tab in Edge. It works the same way. For me 1 tab=17 processes.

In reading (and learning - all new to me!) it seems there isn't much of any option (except investing in additional RAM).
All browsers use multi processes and all use a comparable amount of RAM.

11 Best Browsers For Low CPU Usage 2022
Chrome vs. Firefox vs. Microsoft Edge: Which browser gobbles up the most RAM?

Difference between Chrome and FF in process structure:
How web browsers use Processes and Threads

That article makes no sense to me. In FF I have one tab open to this page, it's 13 processes not 4. Even if it adds another process for each of my add ons (I have 5), it doesn't add up to 13. Ram use is 999 MB

I have this same page open in Edge with exactly the same add ons. It is 15 processes, but ram use is 366MB.

That's a big difference in ram use between the 2 browsers.