I would prefer the giveaways to not have max entry limits per day. Either a fixed amount (20 for example which is close to 3 entries per day and 7 days) or just unlimited entries. Its a bit time consuming to each day log in and play just a few rounds of a slot to be able to have the max entries.
In my opinion, the best way to look at the giveaways is as an RTP buff. If i'm playing bee keeper today for example, on a 96% version, until I get my 3 entries for the day I am essentially playing on >100% RTP.
100% this, the comps are generous and odds are fantastic for the random prize ones.
My only gripe is the big win comps being a bit top heavy sometimes when you know someone who has won 7000EUR+ in the past 12 months is going to come at it and outspend you trying to win it because it's profitable for them to play high volume spins or bonus buys knowing more often than not they will win top 3 and come out ahead longterm. Near impossible to compete unless you are willing to risk 4 figures each month.