I discovered that although Goggle still limits inputting more than 10 stops into Maps, I've found that if you do URL editing, the 24 stop limit has been raised to 40 or more. To take advantage of that without the hassle of editing, I wrote a little Windows script that just takes the URL of the two pages you want to connect. It's a tiny executable, that I've posted on my website as a ZIP file. Your browser, Windows Defender or McAfee might stop you from downloading ZIPs, or extracting them if they contain an EXE file - you'll have to figure that one out - there's usually a "keep" option or "run anyway" option. It is not a virus or other nasty program and I've only used it on Windows 11, but Win7/10 should work fine.
http://user.cavenet.com/jgurley/travel/map_cat.zip
To use it, just bring up two pages that might add up to more than 10 stops, then start the program and copy the address bar contents of the two pages into the two provided boxes. It will then open a new browser window with the combined route. You can run the program again, enter the results page along with a third page, and keep growing the length of the list. I got bored at 40 entries, as they are hard to count! Note that the starting pages MUST be "Directions" pages and have at least two places.