Very minor life hack, but when hiking with a phone map I always take a screenshot of the map to ensure I have at least that. Also a good habit to photo the map whenever starting a known trail with the big map at the start - I do that as a habit now.
Funny thing. I was in search and rescue as a teen, and I went though the courses with a friend. A decade or so later, we were hiking on a bright sunny day* and weren't properly prepared. We went off trail, and found ourselves in an unknown position. Our predominant emotion was shame, with the understanding that if we got S&R called on us we would be completely honest about our training (not that our spouses wouldn't be honest for us). We had a paper map but no compass, and were able to navigate to a marked trail with some educated guesswork. In the end, it was a fun adventure, but the shame stuck with us the whole way home.
* note: "bright and sunny day" is the condition that search and rescue teaches one to be the most mindful of. It's where you and everybody else get the most confident, and prepare the least.
And if you like belts & suspenders and have a laser printer, splurge a little[1]. But still keep your map, compass and pencil in the ziploc.
[1] https://www.riteintherain.com/printer-paper-20-pound#8511-50
My recommendation is to take an old phone, make sure it's charged, and throw it in a Ziploc in a back pocket. Then stay on-trail, which you should almost always be doing anyway.
This is the second response in a row where you've read something I wrote and responded to a very specific thing I did not say.
Sure, use your phone with offline maps as your primary, but a printed backup map doesn't require anything special or expensive.
[1] With an overlap strip that is printed on both sides, thanks to plakativ[2].
Last year I went hiking in Switzerland, so I mailed a couple of different maps of where I was going and picked them up from the print shop in town, which took me...... 30 minutes?
The times I've used my phone for hiking I've always regretted it for one reason or another. Maps are so much better, and it's not extensive setup getting your hands on one, one way or another. Come on.