There are a very few tasks (taking notes in a large conference room comes to mind, which isn't happening much during Covid) that I use bifocals for. For everything else, I just grab one of several sets of glasses right for the job. So there's my infinity prescription ("+0") I call my driving glasses, a "+1 diopter" version I call my garage glasses, a "+1.5" I call my computer glasses, a 1.75 for most reading, and a +2 diopter version I call my Bible Reading glasses (for small print). I have sunglasses in both +0 and +1 for driving and gardening. I seldom pay over $12 for glasses, using ZenniOptical or Goggles4U. For about a buck Zenni lets you inscribe your name and my diopter code on the inner bow, so I don't have to buy weird colors to keep them all straight.
Plus, I need large/long bows and the on-line vendors allow you to search by temple arm length. The brick-and-mortar optical dispensers just aren't that helpful. So I recommend getting a prescription (and glaucoma checks, etc) from an optometrist or ophthalmologist and order your own optical hardware DIY. I have a lot of astigmatism but the cylindrical part of my Rx doesn't change much so I only go in every 2-3 years.