Zardnaar
Legend
Maybe, but what you use and what the rules use are different.
Anyone can administer a healing potion with a bonus action, and anyone can learn to brew healing potions. They take all of a day to craft so they can be stockpiled during downtime.
My current rogue (thief) is a wannabe bard who has Musician and Chef feats, and will be adding Inspiring Leader. I am a bit behind in his DEX but it's not very detrimental to be a bit behind. If I ever get to 19th level I will be combining Reliable Talent with Boon of Skill. He has the proficiencies to craft potions, wonderous items, and rings. Healing potions are easy within downtime constraints. Rings not so much but that's true for anyone.
It doesn't take casters to do these things, and it doesn't take house rules to do things already within the core books. The house rules might be better in your game but those aren't the default everyone else is going to be using. ;-)
I could do this with a fighter too, but lose the rogue skill benefits. Taking Healer at first level and Chef at fourth level, and a proficiency to brew healing potions (or just buy potions) covers a good amount of healing. In a party of four that takes two short rests Chef provides 8d8 healing spread out with some minor temp hp. Healer lets someone spend a hit die and then the healer adds additional healing on to that.
We like manipulation of rice and initiative.
Don't take damage if they're dead or incapacitated.