Edge come with Ad blocker now. I'd recommend ysing full AdGuard program too. Ghostery nay have tarnished it's reputation.
With Chrome I turned off allowing anything to run in background.
Edge should have been updated as part of Tuesday patches.
Isn't there a point at which a broswer cache, and history, works against performance? But if there is available memory to load it, that's useful and only an issue if it isn't released when another foreground app needs it.
FF still has an 11 year old vulnerability waiting for a fix. A native ARM64 version most likely.