Sorry been meaning to do this a while. Will add a couple of Southside places to eat which I forgot Ranjit’s Kitchen (veg indian and fairly cheap) and soy Divison (vegan I think, burger etc. place), glad cafe (bar which has changing menu and usually decent veg options)
Also forgot picnic (veg cafe just off George sq.) And oaka (japanese place just off george sq nice veg gyozas, also has a mini market with Asian goods).
To the drink…
Off the eateries mentioned some are nice bars for drinking in too hug and pint, the 78, stereo, mono, 13th note.
Someone above mentioned there being no beer gardens. But there’s Brel on Ashton lane which i like but can feel a bit touristy and chinaskis near charing Cross. Both will probably be quite busy on sunny days.
From yours you could do a little crawl down GWR from oran mor (which isn’t that good but has a bit to sit outside and stays open later than the other bars around there I think), the belle, crafty pig, inn deep, stravaigin (food is supposed to v. good here too) & dram (both these off GWR but not to far and can go back on it further down where bars are), munros and hug and pint.
Down Sauchiehall st. I like state bar, cca and art school.
Beer wanker places: shilling in the centre, West, drygate, redmonds (out east - st lukes also has a decent selection too, these 4 are nice little crawl too, especially one a sunny day as 3 out of 4 have decent beer gardens, especially west which is probably the best beer garden in Glasgow, usually full of dogs too, if you’re into that type of thing)
6 degrees north - a bit out of the way past Partick station down Dumbarton, very good beer selection, good for a quiet sunday few.
Koelschip yard and allison arms on southside have great beer selection.
Probably forgot a few but these are the places I like to drink.
Quiet like the drake on woodlands rd too has a small beer garden out back which can catch a bit of sun