Realme 8 5G (PREORDER Carphone Warehouse for delivery- 05/01/2023) 5G 4GB RAM 64GB Memory £149

Normally when there's an issue after an update, another update promptly follows to fix it.

Depends what are your expectations or what do you actually need. G62 is perfectly acceptable phone, IMHO A54 5g is better, due to the screen and cameras performance slightly better, Realme 8 5g is clearly the best of a bunch as it's way better than both, 8ncluding "premium'ish" Xiaomi 10 5g (with WAY bigger price tag).
Differences are minor, but at the same time might be crucial, as IE A54 5g only takes 10w charge, for some thus might be almighty deal breaking parameter. Bottom line (IMO) any of them are 5g, which is a milestone above 4g phones. (edited)

It is as to say perfectly balanced 5G phone, the best of the particular ("cheap") range of the phones, you'd need to pay another 66% of the price more to get next best (5G) phone ATM.

If you are after good saving on a decent phone, without premium- nobody cares how long ago it's been released

Not as many as as you might imagine or want (or don't want). AFAIK this model only had one major update of the own OS, still based on the same Android 11. Not a clue what's in-store in future

Don't buy this phone, clearly not good enough for you!